57147415878 has 32 divisors (see below), whose sum is σ = 130753776384. Its totient is φ = 16311444192.

The previous prime is 57147415841. The next prime is 57147415907. The reversal of 57147415878 is 87851474175.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640500 + ... + 724247.

It is an arithmetic number, because the mean of its divisors is an integer number (4086055512).

Almost surely, 2^57147415878 is an apocalyptic number.

57147415878 is an abundant number, since it is smaller than the sum of its proper divisors (73606360506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57147415878 is a wasteful number, since it uses less digits than its factorization.

57147415878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365756.

The product of its digits is 8780800, while the sum is 57.

The spelling of 57147415878 in words is "fifty-seven billion, one hundred forty-seven million, four hundred fifteen thousand, eight hundred seventy-eight".