138950540021200 has 60 divisors (see below), whose sum is σ = 336376983004128. Its totient is φ = 55155939529600.

The previous prime is 138950540021179. The next prime is 138950540021231. The reversal of 138950540021200 is 2120045059831.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1325811532 + ... + 1325916331.

Almost surely, 2^{138950540021200} is an apocalyptic number.

138950540021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138950540021200 is an abundant number, since it is smaller than the sum of its proper divisors (197426442982928).

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

138950540021200 is a wasteful number, since it uses less digits than its factorization.

138950540021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651728012 (or 2651728001 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 138950540021200 in words is "one hundred thirty-eight trillion, nine hundred fifty billion, five hundred forty million, twenty-one thousand, two hundred".