2638031970842 has 16 divisors (see below), whose sum is σ = 4189952696832. Its totient is φ = 1241386153920.

The previous prime is 2638031970839. The next prime is 2638031970863. The reversal of 2638031970842 is 2480791308362.

2638031970842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2638031970842³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204068 + ... + 2306015.

It is an arithmetic number, because the mean of its divisors is an integer number (261872043552).

Almost surely, 2^{2638031970842} is an apocalyptic number.

2638031970842 is a deficient number, since it is larger than the sum of its proper divisors (1551920725990).

2638031970842 is a wasteful number, since it uses less digits than its factorization.

2638031970842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541013.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 2638031970842 in words is "two trillion, six hundred thirty-eight billion, thirty-one million, nine hundred seventy thousand, eight hundred forty-two".