57657251980 has 12 divisors (see below), whose sum is σ = 121080229200. Its totient is φ = 23062900784.

The previous prime is 57657251947. The next prime is 57657251983. The reversal of 57657251980 is 8915275675.

57657251980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57657251983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1441431280 + ... + 1441431319.

It is an arithmetic number, because the mean of its divisors is an integer number (10090019100).

Almost surely, 2^57657251980 is an apocalyptic number.

It is an amenable number.

57657251980 is an abundant number, since it is smaller than the sum of its proper divisors (63422977220).

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

57657251980 is a wasteful number, since it uses less digits than its factorization.

57657251980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882862608 (or 2882862606 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 55.

The spelling of 57657251980 in words is "fifty-seven billion, six hundred fifty-seven million, two hundred fifty-one thousand, nine hundred eighty".