80641272897 has 16 divisors (see below), whose sum is σ = 119509822080. Its totient is φ = 53742277296.

The previous prime is 80641272871. The next prime is 80641272919. The reversal of 80641272897 is 79827214608.

It is a happy number.

80641272897 is a `hidden beast` number, since 80 + 6 + 412 + 72 + 89 + 7 = 666.

It is not a de Polignac number, because 80641272897 - 2¹⁸ = 80641010753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80641272497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436038 + ... + 592799.

It is an arithmetic number, because the mean of its divisors is an integer number (7469363880).

Almost surely, 2^80641272897 is an apocalyptic number.

It is an amenable number.

80641272897 is a deficient number, since it is larger than the sum of its proper divisors (38868549183).

80641272897 is a wasteful number, since it uses less digits than its factorization.

80641272897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031749 (or 1031743 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 80641272897 in words is "eighty billion, six hundred forty-one million, two hundred seventy-two thousand, eight hundred ninety-seven".