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80912207067951 = 3722962918577177
BaseRepresentation
bin10010011001011011010111…
…010111000011101100101111
3101121111010112211101102001010
4102121123113113003230233
541101131200002133301
6444030315455520303
723020466630220300
oct2231332727035457
9347433484342033
1080912207067951
1123865746570846
1290a93b2529093
13361bcb064324c
1415da25929a7a7
15954aa39895d6
hex4996d75c3b2f

80912207067951 has 24 divisors (see below), whose sum is σ = 125500726783920. Its totient is φ = 46233983924352.

The previous prime is 80912207067929. The next prime is 80912207067973. The reversal of 80912207067951 is 15976070221908.

It is an interprime number because it is at equal distance from previous prime (80912207067929) and next prime (80912207067973).

It is not a de Polignac number, because 80912207067951 - 211 = 80912207065903 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80912207067891 and 80912207067900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80912207068951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4933126 + ... + 13644051.

It is an arithmetic number, because the mean of its divisors is an integer number (5229196949330).

Almost surely, 280912207067951 is an apocalyptic number.

80912207067951 is a deficient number, since it is larger than the sum of its proper divisors (44588519715969).

80912207067951 is a wasteful number, since it uses less digits than its factorization.

80912207067951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18606823 (or 18606816 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 57.

The spelling of 80912207067951 in words is "eighty trillion, nine hundred twelve billion, two hundred seven million, sixty-seven thousand, nine hundred fifty-one".

Divisors: 1 3 7 21 49 147 29629 88887 207403 622209 1451821 4355463 18577177 55731531 130040239 390120717 910281673 2730845019 550423177333 1651269531999 3852962241331 11558886723993 26970735689317 80912207067951