57631542478 has 12 divisors (see below), whose sum is σ = 91831576392. Its totient is φ = 27120725600.

The previous prime is 57631542421. The next prime is 57631542481. The reversal of 57631542478 is 87424513675.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49853698 + ... + 49854853.

It is an arithmetic number, because the mean of its divisors is an integer number (7652631366).

Almost surely, 2^57631542478 is an apocalyptic number.

57631542478 is a deficient number, since it is larger than the sum of its proper divisors (34200033914).

57631542478 is a wasteful number, since it uses less digits than its factorization.

57631542478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99708587 (or 99708570 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 52.

The spelling of 57631542478 in words is "fifty-seven billion, six hundred thirty-one million, five hundred forty-two thousand, four hundred seventy-eight".