57126762123 has 4 divisors (see below), whose sum is σ = 76169016168. Its totient is φ = 38084508080.

The previous prime is 57126762113. The next prime is 57126762137. The reversal of 57126762123 is 32126762175.

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 57126762123 - 2²² = 57122567819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57126762103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9521127018 + ... + 9521127023.

It is an arithmetic number, because the mean of its divisors is an integer number (19042254042).

Almost surely, 2^57126762123 is an apocalyptic number.

57126762123 is a deficient number, since it is larger than the sum of its proper divisors (19042254045).

57126762123 is a wasteful number, since it uses less digits than its factorization.

57126762123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19042254044.

The product of its digits is 211680, while the sum is 42.

The spelling of 57126762123 in words is "fifty-seven billion, one hundred twenty-six million, seven hundred sixty-two thousand, one hundred twenty-three".