57707221187 has 16 divisors (see below), whose sum is σ = 71995322112. Its totient is φ = 44936255520.

The previous prime is 57707221139. The next prime is 57707221261. The reversal of 57707221187 is 78112270775.

It is a cyclic number.

It is not a de Polignac number, because 57707221187 - 2⁸ = 57707220931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57707221987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138488 + ... + 366869.

It is an arithmetic number, because the mean of its divisors is an integer number (4499707632).

Almost surely, 2^57707221187 is an apocalyptic number.

57707221187 is a deficient number, since it is larger than the sum of its proper divisors (14288100925).

57707221187 is a wasteful number, since it uses less digits than its factorization.

57707221187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506858.

The product of its (nonzero) digits is 384160, while the sum is 47.

The spelling of 57707221187 in words is "fifty-seven billion, seven hundred seven million, two hundred twenty-one thousand, one hundred eighty-seven".