138277373168 has 30 divisors (see below), whose sum is σ = 294482240472. Its totient is φ = 62853350560.

The previous prime is 138277373167. The next prime is 138277373189. The reversal of 138277373168 is 861373772831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138277373167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35710196 + ... + 35714067.

Almost surely, 2^138277373168 is an apocalyptic number.

It is an amenable number.

138277373168 is an abundant number, since it is smaller than the sum of its proper divisors (156204867304).

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

138277373168 is a wasteful number, since it uses less digits than its factorization.

138277373168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71424293 (or 71424276 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 56.

The spelling of 138277373168 in words is "one hundred thirty-eight billion, two hundred seventy-seven million, three hundred seventy-three thousand, one hundred sixty-eight".