72751273764 has 48 divisors (see below), whose sum is σ = 193564482048. Its totient is φ = 21068241408.

The previous prime is 72751273729. The next prime is 72751273817. The reversal of 72751273764 is 46737215727.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13713652 + ... + 13718955.

It is an arithmetic number, because the mean of its divisors is an integer number (4032593376).

Almost surely, 2^72751273764 is an apocalyptic number.

It is an amenable number.

72751273764 is an abundant number, since it is smaller than the sum of its proper divisors (120813208284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72751273764 is a wasteful number, since it uses less digits than its factorization.

72751273764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27432644 (or 27432642 counting only the distinct ones).

The product of its digits is 3457440, while the sum is 51.

The spelling of 72751273764 in words is "seventy-two billion, seven hundred fifty-one million, two hundred seventy-three thousand, seven hundred sixty-four".