72765788745 has 32 divisors (see below), whose sum is σ = 131980060800. Its totient is φ = 33937726464.

The previous prime is 72765788731. The next prime is 72765788759. The reversal of 72765788745 is 54788756727.

It is an interprime number because it is at equal distance from previous prime (72765788731) and next prime (72765788759).

It is not a de Polignac number, because 72765788745 - 2⁶ = 72765788681 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9816240 + ... + 9823649.

It is an arithmetic number, because the mean of its divisors is an integer number (4124376900).

Almost surely, 2^72765788745 is an apocalyptic number.

It is an amenable number.

72765788745 is a deficient number, since it is larger than the sum of its proper divisors (59214272055).

72765788745 is a wasteful number, since it uses less digits than its factorization.

72765788745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19639929.

The product of its digits is 184396800, while the sum is 66.

The spelling of 72765788745 in words is "seventy-two billion, seven hundred sixty-five million, seven hundred eighty-eight thousand, seven hundred forty-five".