725137272017636 has 24 divisors (see below), whose sum is σ = 1270724696640000. Its totient is φ = 362073086338464.

The previous prime is 725137272017597. The next prime is 725137272017647. The reversal of 725137272017636 is 636710272731527.

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, 220508285 + ... + 223772603.

It is an arithmetic number, because the mean of its divisors is an integer number (52946862360000).

Almost surely, 2^{725137272017636} is an apocalyptic number.

It is an amenable number.

725137272017636 is a deficient number, since it is larger than the sum of its proper divisors (545587424622364).

725137272017636 is a wasteful number, since it uses less digits than its factorization.

725137272017636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340211 (or 3340209 counting only the distinct ones).

The product of its (nonzero) digits is 31116960, while the sum is 59.

The spelling of 725137272017636 in words is "seven hundred twenty-five trillion, one hundred thirty-seven billion, two hundred seventy-two million, seventeen thousand, six hundred thirty-six".