72753992651 has 4 divisors (see below), whose sum is σ = 72783061872. Its totient is φ = 72724923432.

The previous prime is 72753992609. The next prime is 72753992669. The reversal of 72753992651 is 15629935727.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72753992651 - 2³⁴ = 55574123467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72753992681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14530856 + ... + 14535861.

It is an arithmetic number, because the mean of its divisors is an integer number (18195765468).

Almost surely, 2^72753992651 is an apocalyptic number.

72753992651 is a deficient number, since it is larger than the sum of its proper divisors (29069221).

72753992651 is a wasteful number, since it uses less digits than its factorization.

72753992651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29069220.

The product of its digits is 7144200, while the sum is 56.

The spelling of 72753992651 in words is "seventy-two billion, seven hundred fifty-three million, nine hundred ninety-two thousand, six hundred fifty-one".