2638838264 has 16 divisors (see below), whose sum is σ = 5010453600. Its totient is φ = 1302717312.

The previous prime is 2638838249. The next prime is 2638838281. The reversal of 2638838264 is 4628388362.

It is a congruent number.

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, 2087057 + ... + 2088320.

It is an arithmetic number, because the mean of its divisors is an integer number (313153350).

Almost surely, 2^2638838264 is an apocalyptic number.

It is an amenable number.

2638838264 is a deficient number, since it is larger than the sum of its proper divisors (2371615336).

2638838264 is a wasteful number, since it uses less digits than its factorization.

2638838264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175462 (or 4175458 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 50.

The square root of 2638838264 is about 51369.6239425597. The cubic root of 2638838264 is about 1381.8818867770.

The spelling of 2638838264 in words is "two billion, six hundred thirty-eight million, eight hundred thirty-eight thousand, two hundred sixty-four".