57216812678 has 8 divisors (see below), whose sum is σ = 86071137600. Its totient is φ = 28526433480.

The previous prime is 57216812663. The next prime is 57216812713. The reversal of 57216812678 is 87621861275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40985558 + ... + 40986953.

It is an arithmetic number, because the mean of its divisors is an integer number (10758892200).

Almost surely, 2^57216812678 is an apocalyptic number.

57216812678 is a deficient number, since it is larger than the sum of its proper divisors (28854324922).

57216812678 is a wasteful number, since it uses less digits than its factorization.

57216812678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81972862.

The product of its digits is 2257920, while the sum is 53.

The spelling of 57216812678 in words is "fifty-seven billion, two hundred sixteen million, eight hundred twelve thousand, six hundred seventy-eight".