57138487425538 has 8 divisors (see below), whose sum is σ = 85709409827580. Its totient is φ = 28568684149680.

The previous prime is 57138487425403. The next prime is 57138487425541. The reversal of 57138487425538 is 83552478483175.

It can be written as a sum of positive squares in 2 ways, for example, as 57130665261289 + 7822164249 = 7558483^2 + 88443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279653893 + ... + 279858136.

Almost surely, 2^{57138487425538} is an apocalyptic number.

57138487425538 is a deficient number, since it is larger than the sum of its proper divisors (28570922402042).

57138487425538 is a wasteful number, since it uses less digits than its factorization.

57138487425538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559563092.

The product of its digits is 903168000, while the sum is 70.

The spelling of 57138487425538 in words is "fifty-seven trillion, one hundred thirty-eight billion, four hundred eighty-seven million, four hundred twenty-five thousand, five hundred thirty-eight".