57501442861 has 4 divisors (see below), whose sum is σ = 57513736800. Its totient is φ = 57489148924.

The previous prime is 57501442853. The next prime is 57501442871. The reversal of 57501442861 is 16824410575.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57501442861 - 2³ = 57501442853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57501442871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6139951 + ... + 6149308.

It is an arithmetic number, because the mean of its divisors is an integer number (14378434200).

Almost surely, 2^57501442861 is an apocalyptic number.

It is an amenable number.

57501442861 is a deficient number, since it is larger than the sum of its proper divisors (12293939).

57501442861 is a wasteful number, since it uses less digits than its factorization.

57501442861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12293938.

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 57501442861 in words is "fifty-seven billion, five hundred one million, four hundred forty-two thousand, eight hundred sixty-one".