57442939157 has 8 divisors (see below), whose sum is σ = 61020058176. Its totient is φ = 53887833792.

The previous prime is 57442939129. The next prime is 57442939171. The reversal of 57442939157 is 75193924475.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57442939157 - 2⁸ = 57442938901 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 (57442939117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5498033 + ... + 5508470.

It is an arithmetic number, because the mean of its divisors is an integer number (7627507272).

Almost surely, 2^57442939157 is an apocalyptic number.

It is an amenable number.

57442939157 is a deficient number, since it is larger than the sum of its proper divisors (3577119019).

57442939157 is a wasteful number, since it uses less digits than its factorization.

57442939157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11006827.

The product of its digits is 9525600, while the sum is 56.

The spelling of 57442939157 in words is "fifty-seven billion, four hundred forty-two million, nine hundred thirty-nine thousand, one hundred fifty-seven".