2638064163963 has 32 divisors (see below), whose sum is σ = 3744869060160. Its totient is φ = 1646142197760.

The previous prime is 2638064163913. The next prime is 2638064163979. The reversal of 2638064163963 is 3693614608362.

2638064163963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2638064163963 - 2⁹ = 2638064163451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2638064163913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10113703 + ... + 10371263.

It is an arithmetic number, because the mean of its divisors is an integer number (117027158130).

Almost surely, 2^{2638064163963} is an apocalyptic number.

2638064163963 is a deficient number, since it is larger than the sum of its proper divisors (1106804896197).

2638064163963 is a wasteful number, since it uses less digits than its factorization.

2638064163963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258687.

The product of its (nonzero) digits is 20155392, while the sum is 57.

The spelling of 2638064163963 in words is "two trillion, six hundred thirty-eight billion, sixty-four million, one hundred sixty-three thousand, nine hundred sixty-three".