72888532970 has 48 divisors (see below), whose sum is σ = 144290832840. Its totient is φ = 26490224640.

The previous prime is 72888532949. The next prime is 72888532999. The reversal of 72888532970 is 7923588827.

It can be written as a sum of positive squares in 4 ways, for example, as 69806395681 + 3082137289 = 264209^2 + 55517^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2298986 + ... + 2330474.

Almost surely, 2^72888532970 is an apocalyptic number.

72888532970 is a deficient number, since it is larger than the sum of its proper divisors (71402299870).

72888532970 is a wasteful number, since it uses less digits than its factorization.

72888532970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33431 (or 33420 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 59.

The spelling of 72888532970 in words is "seventy-two billion, eight hundred eighty-eight million, five hundred thirty-two thousand, nine hundred seventy".