72076486657 has 16 divisors (see below), whose sum is σ = 83203870720. Its totient is φ = 61158924288.

The previous prime is 72076486637. The next prime is 72076486673. The reversal of 72076486657 is 75668467027.

It is not a de Polignac number, because 72076486657 - 2²⁷ = 71942268929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72076486637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317569 + ... + 494977.

It is an arithmetic number, because the mean of its divisors is an integer number (5200241920).

Almost surely, 2^72076486657 is an apocalyptic number.

It is an amenable number.

72076486657 is a deficient number, since it is larger than the sum of its proper divisors (11127384063).

72076486657 is a wasteful number, since it uses less digits than its factorization.

72076486657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178000.

The product of its (nonzero) digits is 23708160, while the sum is 58.

The spelling of 72076486657 in words is "seventy-two billion, seventy-six million, four hundred eighty-six thousand, six hundred fifty-seven".