57621252672 has 84 divisors (see below), whose sum is σ = 165200248720. Its totient is φ = 19202510592.

The previous prime is 57621252643. The next prime is 57621252673. The reversal of 57621252672 is 27625212675.

57621252672 is a `hidden beast` number, since 57 + 6 + 2 + 1 + 2 + 526 + 72 = 666.

It is not an unprimeable number, because it can be changed into a prime (57621252673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3125979 + ... + 3144357.

Almost surely, 2^57621252672 is an apocalyptic number.

It is an amenable number.

57621252672 is an abundant number, since it is smaller than the sum of its proper divisors (107578996048).

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

57621252672 is a wasteful number, since it uses less digits than its factorization.

57621252672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23840 (or 23827 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The spelling of 57621252672 in words is "fifty-seven billion, six hundred twenty-one million, two hundred fifty-two thousand, six hundred seventy-two".