57690991912 has 16 divisors (see below), whose sum is σ = 108190748340. Its totient is φ = 28840125696.

The previous prime is 57690991907. The next prime is 57690991961. The reversal of 57690991912 is 21919909675.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 56951913316 + 739078596 = 238646^2 + 27186^2 .

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, 625443 + ... + 711730.

Almost surely, 2^57690991912 is an apocalyptic number.

It is an amenable number.

57690991912 is a deficient number, since it is larger than the sum of its proper divisors (50499756428).

57690991912 is a wasteful number, since it uses less digits than its factorization.

57690991912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342572 (or 1342568 counting only the distinct ones).

The product of its (nonzero) digits is 2755620, while the sum is 58.

The spelling of 57690991912 in words is "fifty-seven billion, six hundred ninety million, nine hundred ninety-one thousand, nine hundred twelve".