57997538444 has 12 divisors (see below), whose sum is σ = 102886044744. Its totient is φ = 28601525664.

The previous prime is 57997538441. The next prime is 57997538449. The reversal of 57997538444 is 44483579975.

It is a super-2 number, since 2×57997538444² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57997538441) 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, 99310562 + ... + 99311145.

It is an arithmetic number, because the mean of its divisors is an integer number (8573837062).

Almost surely, 2^57997538444 is an apocalyptic number.

It is an amenable number.

57997538444 is a deficient number, since it is larger than the sum of its proper divisors (44888506300).

57997538444 is a wasteful number, since it uses less digits than its factorization.

57997538444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198621784 (or 198621782 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 65.

The spelling of 57997538444 in words is "fifty-seven billion, nine hundred ninety-seven million, five hundred thirty-eight thousand, four hundred forty-four".