57493631999 has 4 divisors (see below), whose sum is σ = 57571013136. Its totient is φ = 57416250864.

The previous prime is 57493631953. The next prime is 57493632011. The reversal of 57493631999 is 99913639475.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 57493631999 - 2²⁸ = 57225196543 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 (57493631929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38689454 + ... + 38690939.

It is an arithmetic number, because the mean of its divisors is an integer number (14392753284).

Almost surely, 2^57493631999 is an apocalyptic number.

57493631999 is a deficient number, since it is larger than the sum of its proper divisors (77381137).

57493631999 is an equidigital number, since it uses as much as digits as its factorization.

57493631999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77381136.

The product of its digits is 49601160, while the sum is 65.

The spelling of 57493631999 in words is "fifty-seven billion, four hundred ninety-three million, six hundred thirty-one thousand, nine hundred ninety-nine".