57195921672 has 48 divisors (see below), whose sum is σ = 155801063340. Its totient is φ = 18955099008.

The previous prime is 57195921637. The next prime is 57195921697. The reversal of 57195921672 is 27612959175.

It is a happy number.

57195921672 is a `hidden beast` number, since 571 + 9 + 5 + 9 + 2 + 1 + 67 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 57194635716 + 1285956 = 239154^2 + 1134^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2283463 + ... + 2308374.

Almost surely, 2^57195921672 is an apocalyptic number.

It is an amenable number.

57195921672 is an abundant number, since it is smaller than the sum of its proper divisors (98605141668).

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

57195921672 is a wasteful number, since it uses less digits than its factorization.

57195921672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4592022 (or 4592015 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 54.

The spelling of 57195921672 in words is "fifty-seven billion, one hundred ninety-five million, nine hundred twenty-one thousand, six hundred seventy-two".