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80912207067973 is a prime number
BaseRepresentation
bin10010011001011011010111…
…010111000011101101000101
3101121111010112211101102001221
4102121123113113003231011
541101131200002133343
6444030315455520341
723020466630220331
oct2231332727035505
9347433484342057
1080912207067973
1123865746570866
1290a93b25290b1
13361bcb0643268
1415da25929a7c1
15954aa39895ed
hex4996d75c3b45

80912207067973 has 2 divisors, whose sum is σ = 80912207067974. Its totient is φ = 80912207067972.

The previous prime is 80912207067929. The next prime is 80912207068003. The reversal of 80912207067973 is 37976070221908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47298383173924 + 33613823894049 = 6877382^2 + 5797743^2 .

It is a cyclic number.

It is not a de Polignac number, because 80912207067973 - 217 = 80912206936901 is a prime.

It is a super-2 number, since 2×809122070679732 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80912207067673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40456103533986 + 40456103533987.

It is an arithmetic number, because the mean of its divisors is an integer number (40456103533987).

Almost surely, 280912207067973 is an apocalyptic number.

It is an amenable number.

80912207067973 is a deficient number, since it is larger than the sum of its proper divisors (1).

80912207067973 is an equidigital number, since it uses as much as digits as its factorization.

80912207067973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16003008, while the sum is 61.

The spelling of 80912207067973 in words is "eighty trillion, nine hundred twelve billion, two hundred seven million, sixty-seven thousand, nine hundred seventy-three".