138737884248 has 48 divisors (see below), whose sum is σ = 379970346600. Its totient is φ = 45726341760.

The previous prime is 138737884247. The next prime is 138737884267. The reversal of 138737884248 is 842488737831.

It is a happy number.

138737884248 is a `hidden beast` number, since 1 + 387 + 3 + 7 + 8 + 8 + 4 + 248 = 666.

138737884248 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×138737884248² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138737884247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10818958 + ... + 10831773.

Almost surely, 2^138737884248 is an apocalyptic number.

138737884248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

138737884248 is an abundant number, since it is smaller than the sum of its proper divisors (241232462352).

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

138737884248 is a wasteful number, since it uses less digits than its factorization.

138737884248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21650832 (or 21650825 counting only the distinct ones).

The product of its digits is 57802752, while the sum is 63.

The spelling of 138737884248 in words is "one hundred thirty-eight billion, seven hundred thirty-seven million, eight hundred eighty-four thousand, two hundred forty-eight".