138140795632 has 40 divisors (see below), whose sum is σ = 305900706816. Its totient is φ = 59199807936.

The previous prime is 138140795609. The next prime is 138140795633. The reversal of 138140795632 is 236597041831.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138140795633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3520473 + ... + 3559495.

It is a 1-persistent number, because it is pandigital, but 2⋅138140795632 = 276281591264 is not.

Almost surely, 2^138140795632 is an apocalyptic number.

It is an amenable number.

138140795632 is an abundant number, since it is smaller than the sum of its proper divisors (167759911184).

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

138140795632 is a wasteful number, since it uses less digits than its factorization.

138140795632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70645 (or 70639 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 138140795632 in words is "one hundred thirty-eight billion, one hundred forty million, seven hundred ninety-five thousand, six hundred thirty-two".