2638837187368 has 128 divisors (see below), whose sum is σ = 5312084198400. Its totient is φ = 1224614117376.

The previous prime is 2638837187323. The next prime is 2638837187381. The reversal of 2638837187368 is 8637817388362.

It is a junction number, because it is equal to n+sod(n) for n = 2638837187297 and 2638837187306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1699186080 + ... + 1699187632.

It is an arithmetic number, because the mean of its divisors is an integer number (41500657800).

Almost surely, 2^{2638837187368} is an apocalyptic number.

It is an amenable number.

2638837187368 is an abundant number, since it is smaller than the sum of its proper divisors (2673247011032).

2638837187368 is a wasteful number, since it uses less digits than its factorization.

2638837187368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291 (or 2287 counting only the distinct ones).

The product of its digits is 390168576, while the sum is 70.

The spelling of 2638837187368 in words is "two trillion, six hundred thirty-eight billion, eight hundred thirty-seven million, one hundred eighty-seven thousand, three hundred sixty-eight".