2688557136 has 40 divisors (see below), whose sum is σ = 6947308320. Its totient is φ = 895944576.

The previous prime is 2688557117. The next prime is 2688557141. The reversal of 2688557136 is 6317558862.

It is a happy number.

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, 315135 + ... + 323553.

It is an arithmetic number, because the mean of its divisors is an integer number (173682708).

Almost surely, 2^2688557136 is an apocalyptic number.

It is an amenable number.

2688557136 is an abundant number, since it is smaller than the sum of its proper divisors (4258751184).

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

2688557136 is a wasteful number, since it uses less digits than its factorization.

2688557136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15083 (or 15077 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The square root of 2688557136 is about 51851.2983058284. The cubic root of 2688557136 is about 1390.5067137977.

The spelling of 2688557136 in words is "two billion, six hundred eighty-eight million, five hundred fifty-seven thousand, one hundred thirty-six".