57860646978 has 16 divisors (see below), whose sum is σ = 115764075360. Its totient is φ = 19279752096.

The previous prime is 57860646959. The next prime is 57860646997. The reversal of 57860646978 is 87964606875.

It is an interprime number because it is at equal distance from previous prime (57860646959) and next prime (57860646997).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1764963 + ... + 1797446.

It is an arithmetic number, because the mean of its divisors is an integer number (7235254710).

Almost surely, 2^57860646978 is an apocalyptic number.

57860646978 is an abundant number, since it is smaller than the sum of its proper divisors (57903428382).

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

57860646978 is a wasteful number, since it uses less digits than its factorization.

57860646978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565121.

The product of its (nonzero) digits is 121927680, while the sum is 66.

The spelling of 57860646978 in words is "fifty-seven billion, eight hundred sixty million, six hundred forty-six thousand, nine hundred seventy-eight".