72948052640 has 48 divisors (see below), whose sum is σ = 182477414952. Its totient is φ = 27462795264.

The previous prime is 72948052637. The next prime is 72948052687. The reversal of 72948052640 is 4625084927.

It can be written as a sum of positive squares in 4 ways, for example, as 52369576336 + 20578476304 = 228844^2 + 143452^2 .

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, 13406849 + ... + 13412288.

Almost surely, 2^72948052640 is an apocalyptic number.

It is an amenable number.

72948052640 is an abundant number, since it is smaller than the sum of its proper divisors (109529362312).

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

72948052640 is a wasteful number, since it uses less digits than its factorization.

72948052640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26819169 (or 26819161 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 72948052640 in words is "seventy-two billion, nine hundred forty-eight million, fifty-two thousand, six hundred forty".