57442724868 has 12 divisors (see below), whose sum is σ = 134033024720. Its totient is φ = 19147574952.

The previous prime is 57442724851. The next prime is 57442724879. The reversal of 57442724868 is 86842724475.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 2393446858 + ... + 2393446881.

Almost surely, 2^57442724868 is an apocalyptic number.

It is an amenable number.

57442724868 is an abundant number, since it is smaller than the sum of its proper divisors (76590299852).

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

57442724868 is a wasteful number, since it uses less digits than its factorization.

57442724868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4786893746 (or 4786893744 counting only the distinct ones).

The product of its digits is 24084480, while the sum is 57.

The spelling of 57442724868 in words is "fifty-seven billion, four hundred forty-two million, seven hundred twenty-four thousand, eight hundred sixty-eight".