7812276638138 has 16 divisors (see below), whose sum is σ = 13392965476800. Its totient is φ = 3347995749216.

The previous prime is 7812276638119. The next prime is 7812276638143. The reversal of 7812276638138 is 8318366722187.

It is a super-2 number, since 2×7812276638138² (a number of 27 digits) contains 22 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, 9838331 + ... + 10602702.

It is an arithmetic number, because the mean of its divisors is an integer number (837060342300).

Almost surely, 2^{7812276638138} is an apocalyptic number.

7812276638138 is a deficient number, since it is larger than the sum of its proper divisors (5580688838662).

7812276638138 is a wasteful number, since it uses less digits than its factorization.

7812276638138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20468341.

The product of its digits is 32514048, while the sum is 62.

The spelling of 7812276638138 in words is "seven trillion, eight hundred twelve billion, two hundred seventy-six million, six hundred thirty-eight thousand, one hundred thirty-eight".