2639137888 has 24 divisors (see below), whose sum is σ = 5197772160. Its totient is φ = 1319068800.

The previous prime is 2639137819. The next prime is 2639137889. The reversal of 2639137888 is 8887319362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639137889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78913 + ... + 107263.

It is an arithmetic number, because the mean of its divisors is an integer number (216573840).

Almost surely, 2^2639137888 is an apocalyptic number.

It is an amenable number.

2639137888 is a deficient number, since it is larger than the sum of its proper divisors (2558634272).

2639137888 is a wasteful number, since it uses less digits than its factorization.

2639137888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31270 (or 31262 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 55.

The square root of 2639137888 is about 51372.5402136200. The cubic root of 2639137888 is about 1381.9341862193.

The spelling of 2639137888 in words is "two billion, six hundred thirty-nine million, one hundred thirty-seven thousand, eight hundred eighty-eight".