2557019670 has 16 divisors (see below), whose sum is σ = 6136847280. Its totient is φ = 681871904.

The previous prime is 2557019669. The next prime is 2557019681. The reversal of 2557019670 is 769107552.

It is a congruent number.

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, 42616965 + ... + 42617024.

It is an arithmetic number, because the mean of its divisors is an integer number (383552955).

Almost surely, 2^2557019670 is an apocalyptic number.

2557019670 is an abundant number, since it is smaller than the sum of its proper divisors (3579827610).

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

2557019670 is a wasteful number, since it uses less digits than its factorization.

2557019670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85233999.

The product of its (nonzero) digits is 132300, while the sum is 42.

The square root of 2557019670 is about 50566.9820139585. The cubic root of 2557019670 is about 1367.4496873851.

The spelling of 2557019670 in words is "two billion, five hundred fifty-seven million, nineteen thousand, six hundred seventy".