2570638378 has 64 divisors (see below), whose sum is σ = 5101885440. Its totient is φ = 941688000.

The previous prime is 2570638363. The next prime is 2570638397. The reversal of 2570638378 is 8738360752.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202828 + ... + 215128.

It is an arithmetic number, because the mean of its divisors is an integer number (79716960).

Almost surely, 2^2570638378 is an apocalyptic number.

2570638378 is a deficient number, since it is larger than the sum of its proper divisors (2531247062).

2570638378 is a wasteful number, since it uses less digits than its factorization.

2570638378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12403.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The square root of 2570638378 is about 50701.4632727696. The cubic root of 2570638378 is about 1369.8730729373.

The spelling of 2570638378 in words is "two billion, five hundred seventy million, six hundred thirty-eight thousand, three hundred seventy-eight".