72807672805 has 32 divisors (see below), whose sum is σ = 100931394816. Its totient is φ = 49385355264.

The previous prime is 72807672767. The next prime is 72807672829. The reversal of 72807672805 is 50827670827.

It is not a de Polignac number, because 72807672805 - 2¹⁷ = 72807541733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8676822 + ... + 8685208.

It is an arithmetic number, because the mean of its divisors is an integer number (3154106088).

Almost surely, 2^72807672805 is an apocalyptic number.

It is an amenable number.

72807672805 is a deficient number, since it is larger than the sum of its proper divisors (28123722011).

72807672805 is a wasteful number, since it uses less digits than its factorization.

72807672805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11053.

The product of its (nonzero) digits is 2634240, while the sum is 52.

The spelling of 72807672805 in words is "seventy-two billion, eight hundred seven million, six hundred seventy-two thousand, eight hundred five".