57940077438 has 40 divisors (see below), whose sum is σ = 129842654832. Its totient is φ = 19311282144.

The previous prime is 57940077413. The next prime is 57940077463. The reversal of 57940077438 is 83477004975.

57940077438 is a `hidden beast` number, since 57 + 94 + 0 + 0 + 77 + 438 = 666.

It is an interprime number because it is at equal distance from previous prime (57940077413) and next prime (57940077463).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2538031 + ... + 2560757.

Almost surely, 2^57940077438 is an apocalyptic number.

57940077438 is an abundant number, since it is smaller than the sum of its proper divisors (71902577394).

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

57940077438 is a wasteful number, since it uses less digits than its factorization.

57940077438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38478 (or 38469 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 54.

The spelling of 57940077438 in words is "fifty-seven billion, nine hundred forty million, seventy-seven thousand, four hundred thirty-eight".