57128718207 has 48 divisors (see below), whose sum is σ = 86300405856. Its totient is φ = 33565593600.

The previous prime is 57128718197. The next prime is 57128718259. The reversal of 57128718207 is 70281782175.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-57128718207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57128718607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3766543 + ... + 3781679.

It is an arithmetic number, because the mean of its divisors is an integer number (1797925122).

Almost surely, 2^57128718207 is an apocalyptic number.

57128718207 is a deficient number, since it is larger than the sum of its proper divisors (29171687649).

57128718207 is a wasteful number, since it uses less digits than its factorization.

57128718207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15480 (or 15469 counting only the distinct ones).

The product of its (nonzero) digits is 439040, while the sum is 48.

The spelling of 57128718207 in words is "fifty-seven billion, one hundred twenty-eight million, seven hundred eighteen thousand, two hundred seven".