2638888888807 has 16 divisors (see below), whose sum is σ = 2694154964832. Its totient is φ = 2584021893120.

The previous prime is 2638888888681. The next prime is 2638888888813. The reversal of 2638888888807 is 7088888888362.

2638888888807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2638888888807 - 2⁷ = 2638888888679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638888888897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27339543 + ... + 27435895.

It is an arithmetic number, because the mean of its divisors is an integer number (168384685302).

Almost surely, 2^{2638888888807} is an apocalyptic number.

2638888888807 is a deficient number, since it is larger than the sum of its proper divisors (55266076025).

2638888888807 is a wasteful number, since it uses less digits than its factorization.

2638888888807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98418.

The product of its (nonzero) digits is 4227858432, while the sum is 82.

The spelling of 2638888888807 in words is "two trillion, six hundred thirty-eight billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred seven".