2629401938868 has 48 divisors (see below), whose sum is σ = 6149174391360. Its totient is φ = 874481612544.

The previous prime is 2629401938833. The next prime is 2629401938869. The reversal of 2629401938868 is 8688391049262.

It is a super-2 number, since 2×2629401938868² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2629401938799 and 2629401938808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2629401938869) 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, 53846848 + ... + 53895656.

It is an arithmetic number, because the mean of its divisors is an integer number (128107799820).

Almost surely, 2^{2629401938868} is an apocalyptic number.

It is an amenable number.

2629401938868 is an abundant number, since it is smaller than the sum of its proper divisors (3519772452492).

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

2629401938868 is a wasteful number, since it uses less digits than its factorization.

2629401938868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58896 (or 58894 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 66.

The spelling of 2629401938868 in words is "two trillion, six hundred twenty-nine billion, four hundred one million, nine hundred thirty-eight thousand, eight hundred sixty-eight".