57712730644 has 12 divisors (see below), whose sum is σ = 100999460884. Its totient is φ = 28855741824.

The previous prime is 57712730599. The next prime is 57712730651. The reversal of 57712730644 is 44603721775.

It can be written as a sum of positive squares in 2 ways, for example, as 7721136900 + 49991593744 = 87870^2 + 223588^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 57712730594 and 57712730603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98524 + ... + 353740.

Almost surely, 2^57712730644 is an apocalyptic number.

It is an amenable number.

57712730644 is a deficient number, since it is larger than the sum of its proper divisors (43286730240).

57712730644 is a wasteful number, since it uses less digits than its factorization.

57712730644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311754 (or 311752 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 57712730644 in words is "fifty-seven billion, seven hundred twelve million, seven hundred thirty thousand, six hundred forty-four".