57727747264 has 56 divisors (see below), whose sum is σ = 125076679488. Its totient is φ = 26216951040.

The previous prime is 57727747249. The next prime is 57727747283. The reversal of 57727747264 is 46274772775.

It is a junction number, because it is equal to n+sod(n) for n = 57727747199 and 57727747208.

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, 783499 + ... + 854005.

Almost surely, 2^57727747264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57727747264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62538339744).

57727747264 is an abundant number, since it is smaller than the sum of its proper divisors (67348932224).

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

57727747264 is a wasteful number, since it uses less digits than its factorization.

57727747264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71693 (or 71683 counting only the distinct ones).

The product of its digits is 32269440, while the sum is 58.

The spelling of 57727747264 in words is "fifty-seven billion, seven hundred twenty-seven million, seven hundred forty-seven thousand, two hundred sixty-four".