138690151188 has 12 divisors (see below), whose sum is σ = 323610352800. Its totient is φ = 46230050392.

The previous prime is 138690151177. The next prime is 138690151189. The reversal of 138690151188 is 881151096831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×138690151188² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138690151188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138690151189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5778756288 + ... + 5778756311.

It is an arithmetic number, because the mean of its divisors is an integer number (26967529400).

Almost surely, 2^138690151188 is an apocalyptic number.

It is an amenable number.

138690151188 is an abundant number, since it is smaller than the sum of its proper divisors (184920201612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138690151188 is a wasteful number, since it uses less digits than its factorization.

138690151188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11557512606 (or 11557512604 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 51.

The spelling of 138690151188 in words is "one hundred thirty-eight billion, six hundred ninety million, one hundred fifty-one thousand, one hundred eighty-eight".