2657642888 has 16 divisors (see below), whose sum is σ = 5029652880. Its totient is φ = 1316402128.

The previous prime is 2657642873. The next prime is 2657642899. The reversal of 2657642888 is 8882467562.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1551506 + ... + 1553217.

It is an arithmetic number, because the mean of its divisors is an integer number (314353305).

Almost surely, 2^2657642888 is an apocalyptic number.

It is an amenable number.

2657642888 is a deficient number, since it is larger than the sum of its proper divisors (2372009992).

2657642888 is a wasteful number, since it uses less digits than its factorization.

2657642888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3104836 (or 3104832 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 56.

The square root of 2657642888 is about 51552.3315476614. The cubic root of 2657642888 is about 1385.1565963509.

The spelling of 2657642888 in words is "two billion, six hundred fifty-seven million, six hundred forty-two thousand, eight hundred eighty-eight".