2638052648938 has 36 divisors (see below), whose sum is σ = 4762017697410. Its totient is φ = 1091572163472.

The previous prime is 2638052648867. The next prime is 2638052648951. The reversal of 2638052648938 is 8398462508362.

2638052648938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2228699651689 + 409352997249 = 1492883^2 + 639807^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2638052648938.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 86571981 + ... + 86602447.

Almost surely, 2^{2638052648938} is an apocalyptic number.

2638052648938 is a deficient number, since it is larger than the sum of its proper divisors (2123965048472).

2638052648938 is an frugal number, since it uses more digits than its factorization.

2638052648938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60979 (or 30505 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 64.

The spelling of 2638052648938 in words is "two trillion, six hundred thirty-eight billion, fifty-two million, six hundred forty-eight thousand, nine hundred thirty-eight".