80439472676961 has 24 divisors (see below), whose sum is σ = 118666323959040. Its totient is φ = 52483631475456.

The previous prime is 80439472676921. The next prime is 80439472676963. The reversal of 80439472676961 is 16967627493408.

It is a happy number.

80439472676961 is a `hidden beast` number, since 8 + 0 + 4 + 3 + 9 + 472 + 67 + 6 + 96 + 1 = 666.

It is not a de Polignac number, because 80439472676961 - 2⁹ = 80439472676449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80439472676961.

It is not an unprimeable number, because it can be changed into a prime (80439472676963) 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, 10078705 + ... + 16200593.

It is an arithmetic number, because the mean of its divisors is an integer number (4944430164960).

Almost surely, 2^{80439472676961} is an apocalyptic number.

It is an amenable number.

80439472676961 is a deficient number, since it is larger than the sum of its proper divisors (38226851282079).

80439472676961 is a wasteful number, since it uses less digits than its factorization.

80439472676961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6153005 (or 6153002 counting only the distinct ones).

The product of its (nonzero) digits is 658409472, while the sum is 72.

The spelling of 80439472676961 in words is "eighty trillion, four hundred thirty-nine billion, four hundred seventy-two million, six hundred seventy-six thousand, nine hundred sixty-one".