72739188902944 has 12 divisors (see below), whose sum is σ = 143205278152734. Its totient is φ = 36369594451456.

The previous prime is 72739188902929. The next prime is 72739188902953. The reversal of 72739188902944 is 44920988193727.

It can be written as a sum of positive squares in only one way, i.e., 52736934480400 + 20002254422544 = 7262020^2 + 4472388^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136549826577 + ... + 1136549826640.

Almost surely, 2^{72739188902944} is an apocalyptic number.

It is an amenable number.

72739188902944 is a deficient number, since it is larger than the sum of its proper divisors (70466089249790).

72739188902944 is a wasteful number, since it uses less digits than its factorization.

72739188902944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273099653227 (or 2273099653219 counting only the distinct ones).

The product of its (nonzero) digits is 438939648, while the sum is 73.

The spelling of 72739188902944 in words is "seventy-two trillion, seven hundred thirty-nine billion, one hundred eighty-eight million, nine hundred two thousand, nine hundred forty-four".