57489129820 has 12 divisors (see below), whose sum is σ = 120727172664. Its totient is φ = 22995651920.

The previous prime is 57489129791. The next prime is 57489129821. The reversal of 57489129820 is 2892198475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57489129821) 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 3 ways as a sum of consecutive naturals, for example, 1437228226 + ... + 1437228265.

It is an arithmetic number, because the mean of its divisors is an integer number (10060597722).

Almost surely, 2^57489129820 is an apocalyptic number.

It is an amenable number.

57489129820 is an abundant number, since it is smaller than the sum of its proper divisors (63238042844).

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

57489129820 is a wasteful number, since it uses less digits than its factorization.

57489129820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874456500 (or 2874456498 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 57489129820 in words is "fifty-seven billion, four hundred eighty-nine million, one hundred twenty-nine thousand, eight hundred twenty".