56723687240 has 32 divisors (see below), whose sum is σ = 139230869760. Its totient is φ = 20626795200.

The previous prime is 56723687227. The next prime is 56723687291. The reversal of 56723687240 is 4278632765.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64458296 + ... + 64459175.

It is an arithmetic number, because the mean of its divisors is an integer number (4350964680).

Almost surely, 2^56723687240 is an apocalyptic number.

It is an amenable number.

56723687240 is an abundant number, since it is smaller than the sum of its proper divisors (82507182520).

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

56723687240 is a wasteful number, since it uses less digits than its factorization.

56723687240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128917493 (or 128917489 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 56723687240 in words is "fifty-six billion, seven hundred twenty-three million, six hundred eighty-seven thousand, two hundred forty".