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80612737697 = 235501637139
BaseRepresentation
bin100101100010011100…
…1001100001010100001
321201002001002101002202
41023010321030022201
52310043330101242
6101011042422545
75552441651612
oct1130471141241
9251061071082
1080612737697
1131207874a78
1213759061a55
1377a90703bb
143c8a2b9c09
15216c1a5932
hex12c4e4c2a1

80612737697 has 8 divisors (see below), whose sum is σ = 84133062720. Its totient is φ = 77093698000.

The previous prime is 80612737693. The next prime is 80612737721. The reversal of 80612737697 is 79673721608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80612737697 - 22 = 80612737693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80612737693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192047 + ... + 445092.

It is an arithmetic number, because the mean of its divisors is an integer number (10516632840).

Almost surely, 280612737697 is an apocalyptic number.

It is an amenable number.

80612737697 is a deficient number, since it is larger than the sum of its proper divisors (3520325023).

80612737697 is a wasteful number, since it uses less digits than its factorization.

80612737697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642663.

The product of its (nonzero) digits is 5334336, while the sum is 56.

The spelling of 80612737697 in words is "eighty billion, six hundred twelve million, seven hundred thirty-seven thousand, six hundred ninety-seven".

Divisors: 1 23 5501 126523 637139 14654197 3504901639 80612737697