138766836922 has 16 divisors (see below), whose sum is σ = 239131487232. Its totient is φ = 59160131280.

The previous prime is 138766836917. The next prime is 138766836931. The reversal of 138766836922 is 229638667831.

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, 25944753 + ... + 25950100.

It is an arithmetic number, because the mean of its divisors is an integer number (14945717952).

Almost surely, 2^138766836922 is an apocalyptic number.

138766836922 is a deficient number, since it is larger than the sum of its proper divisors (100364650310).

138766836922 is a wasteful number, since it uses less digits than its factorization.

138766836922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51895053.

The product of its digits is 31352832, while the sum is 61.

The spelling of 138766836922 in words is "one hundred thirty-eight billion, seven hundred sixty-six million, eight hundred thirty-six thousand, nine hundred twenty-two".