2570649864 has 16 divisors (see below), whose sum is σ = 6426624720. Its totient is φ = 856883280.

The previous prime is 2570649853. The next prime is 2570649869. The reversal of 2570649864 is 4689460752.

It is not an unprimeable number, because it can be changed into a prime (2570649869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53555182 + ... + 53555229.

It is an arithmetic number, because the mean of its divisors is an integer number (401664045).

Almost surely, 2^2570649864 is an apocalyptic number.

2570649864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2570649864 is an abundant number, since it is smaller than the sum of its proper divisors (3855974856).

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

2570649864 is a wasteful number, since it uses less digits than its factorization.

2570649864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107110420 (or 107110416 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The square root of 2570649864 is about 50701.5765435356. The cubic root of 2570649864 is about 1369.8751132007.

The spelling of 2570649864 in words is "two billion, five hundred seventy million, six hundred forty-nine thousand, eight hundred sixty-four".