57015878431 has 2 divisors, whose sum is σ = 57015878432. Its totient is φ = 57015878430.

The previous prime is 57015878429. The next prime is 57015878551. The reversal of 57015878431 is 13487851075.

57015878431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57015878431 - 2¹ = 57015878429 is a prime.

It is a super-2 number, since 2×57015878431² (a number of 22 digits) contains 22 as substring.

Together with 57015878429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57015828431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28507939215 + 28507939216.

It is an arithmetic number, because the mean of its divisors is an integer number (28507939216).

Almost surely, 2^57015878431 is an apocalyptic number.

57015878431 is a deficient number, since it is larger than the sum of its proper divisors (1).

57015878431 is an equidigital number, since it uses as much as digits as its factorization.

57015878431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 57015878431 in words is "fifty-seven billion, fifteen million, eight hundred seventy-eight thousand, four hundred thirty-one".