57621620028 has 48 divisors (see below), whose sum is σ = 153681059840. Its totient is φ = 16460812224.

The previous prime is 57621620027. The next prime is 57621620039. The reversal of 57621620028 is 82002612675.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57621620027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542550 + ... + 640002.

Almost surely, 2^57621620028 is an apocalyptic number.

It is an amenable number.

57621620028 is an abundant number, since it is smaller than the sum of its proper divisors (96059439812).

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

57621620028 is a wasteful number, since it uses less digits than its factorization.

57621620028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104506 (or 104504 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 57621620028 in words is "fifty-seven billion, six hundred twenty-one million, six hundred twenty thousand, twenty-eight".