12799836538 has 16 divisors (see below), whose sum is σ = 19542672000. Its totient is φ = 6285807072.

The previous prime is 12799836523. The next prime is 12799836547. The reversal of 12799836538 is 83563899721.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85183 + ... + 181261.

It is an arithmetic number, because the mean of its divisors is an integer number (1221417000).

Almost surely, 2^12799836538 is an apocalyptic number.

12799836538 is a deficient number, since it is larger than the sum of its proper divisors (6742835462).

12799836538 is a wasteful number, since it uses less digits than its factorization.

12799836538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97269.

The product of its digits is 19595520, while the sum is 61.

The spelling of 12799836538 in words is "twelve billion, seven hundred ninety-nine million, eight hundred thirty-six thousand, five hundred thirty-eight".