57947426369 has 4 divisors (see below), whose sum is σ = 66225630144. Its totient is φ = 49669222596.

The previous prime is 57947426357. The next prime is 57947426413. The reversal of 57947426369 is 96362474975.

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 not a de Polignac number, because 57947426369 - 2²⁸ = 57678990913 is a prime.

It is a super-2 number, since 2×57947426369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57947446369) 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, 4139101877 + ... + 4139101890.

It is an arithmetic number, because the mean of its divisors is an integer number (16556407536).

Almost surely, 2^57947426369 is an apocalyptic number.

It is an amenable number.

57947426369 is a deficient number, since it is larger than the sum of its proper divisors (8278203775).

57947426369 is an equidigital number, since it uses as much as digits as its factorization.

57947426369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8278203774.

The product of its digits is 68584320, while the sum is 62.

The spelling of 57947426369 in words is "fifty-seven billion, nine hundred forty-seven million, four hundred twenty-six thousand, three hundred sixty-nine".