57202865778 has 16 divisors (see below), whose sum is σ = 116281236096. Its totient is φ = 18755037840.

The previous prime is 57202865749. The next prime is 57202865789. The reversal of 57202865778 is 87756820275.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78145626 + ... + 78146357.

It is an arithmetic number, because the mean of its divisors is an integer number (7267577256).

Almost surely, 2^57202865778 is an apocalyptic number.

57202865778 is an abundant number, since it is smaller than the sum of its proper divisors (59078370318).

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

57202865778 is a wasteful number, since it uses less digits than its factorization.

57202865778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156292049.

The product of its (nonzero) digits is 13171200, while the sum is 57.

The spelling of 57202865778 in words is "fifty-seven billion, two hundred two million, eight hundred sixty-five thousand, seven hundred seventy-eight".