2638268043368 has 16 divisors (see below), whose sum is σ = 5061793339680. Its totient is φ = 1288456486128.

The previous prime is 2638268043319. The next prime is 2638268043379. The reversal of 2638268043368 is 8633408628362.

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, 3834691580 + ... + 3834692267.

It is an arithmetic number, because the mean of its divisors is an integer number (316362083730).

Almost surely, 2^{2638268043368} is an apocalyptic number.

It is an amenable number.

2638268043368 is a deficient number, since it is larger than the sum of its proper divisors (2423525296312).

2638268043368 is a wasteful number, since it uses less digits than its factorization.

2638268043368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7669383896 (or 7669383892 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 59.

The spelling of 2638268043368 in words is "two trillion, six hundred thirty-eight billion, two hundred sixty-eight million, forty-three thousand, three hundred sixty-eight".