72560732776 has 16 divisors (see below), whose sum is σ = 155487284640. Its totient is φ = 31097456880.

The previous prime is 72560732771. The next prime is 72560732779. The reversal of 72560732776 is 67723706527.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72560732771) 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, 647863630 + ... + 647863741.

It is an arithmetic number, because the mean of its divisors is an integer number (9717955290).

Almost surely, 2^72560732776 is an apocalyptic number.

It is an amenable number.

72560732776 is an abundant number, since it is smaller than the sum of its proper divisors (82926551864).

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

72560732776 is a wasteful number, since it uses less digits than its factorization.

72560732776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295727384 (or 1295727380 counting only the distinct ones).

The product of its (nonzero) digits is 5186160, while the sum is 52.

The spelling of 72560732776 in words is "seventy-two billion, five hundred sixty million, seven hundred thirty-two thousand, seven hundred seventy-six".