57081500432928 has 240 divisors, whose sum is σ = 182554175815704. Its totient is φ = 17423923322880.

The previous prime is 57081500432921. The next prime is 57081500432939. The reversal of 57081500432928 is 82923400518075.

57081500432928 is a `hidden beast` number, since 5 + 7 + 0 + 8 + 1 + 500 + 43 + 2 + 92 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 54865248923664 + 2216251509264 = 7407108^2 + 1488708^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (57081500432921) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15875343 + ... + 19136078.

Almost surely, 2^{57081500432928} is an apocalyptic number.

It is an amenable number.

57081500432928 is an abundant number, since it is smaller than the sum of its proper divisors (125472675382776).

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

57081500432928 is a wasteful number, since it uses less digits than its factorization.

57081500432928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35011497 (or 35011480 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 57081500432928 in words is "fifty-seven trillion, eighty-one billion, five hundred million, four hundred thirty-two thousand, nine hundred twenty-eight".