138747651952 has 80 divisors (see below), whose sum is σ = 338929682112. Its totient is φ = 53550397440.

The previous prime is 138747651949. The next prime is 138747651989. The reversal of 138747651952 is 259156747831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1102423 + ... + 1221814.

Almost surely, 2^138747651952 is an apocalyptic number.

It is an amenable number.

138747651952 is an abundant number, since it is smaller than the sum of its proper divisors (200182030160).

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

138747651952 is a wasteful number, since it uses less digits than its factorization.

138747651952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324306 (or 2324300 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 58.

The spelling of 138747651952 in words is "one hundred thirty-eight billion, seven hundred forty-seven million, six hundred fifty-one thousand, nine hundred fifty-two".