57926640831 has 4 divisors (see below), whose sum is σ = 77235521112. Its totient is φ = 38617760552.

The previous prime is 57926640829. The next prime is 57926640833. The reversal of 57926640831 is 13804662975.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (57926640829) and next prime (57926640833).

It is a cyclic number.

It is not a de Polignac number, because 57926640831 - 2¹ = 57926640829 is a prime.

It is a super-2 number, since 2×57926640831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57926640833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9654440136 + ... + 9654440141.

It is an arithmetic number, because the mean of its divisors is an integer number (19308880278).

It is a 1-persistent number, because it is pandigital, but 2⋅57926640831 = 115853281662 is not.

Almost surely, 2^57926640831 is an apocalyptic number.

57926640831 is a deficient number, since it is larger than the sum of its proper divisors (19308880281).

57926640831 is a wasteful number, since it uses less digits than its factorization.

57926640831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19308880280.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 57926640831 in words is "fifty-seven billion, nine hundred twenty-six million, six hundred forty thousand, eight hundred thirty-one".