2657431368 has 64 divisors (see below), whose sum is σ = 7389532800. Its totient is φ = 884877120.

The previous prime is 2657431351. The next prime is 2657431369. The reversal of 2657431368 is 8631347562.

2657431368 is a `hidden beast` number, since 2 + 6 + 574 + 3 + 13 + 68 = 666.

2657431368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2657431369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216730 + ... + 228662.

It is an arithmetic number, because the mean of its divisors is an integer number (115461450).

Almost surely, 2^2657431368 is an apocalyptic number.

It is an amenable number.

2657431368 is an abundant number, since it is smaller than the sum of its proper divisors (4732101432).

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

2657431368 is a wasteful number, since it uses less digits than its factorization.

2657431368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12979 (or 12969 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 2657431368 is about 51550.2799992396. The cubic root of 2657431368 is about 1385.1198474837.

The spelling of 2657431368 in words is "two billion, six hundred fifty-seven million, four hundred thirty-one thousand, three hundred sixty-eight".