138843272580 has 24 divisors (see below), whose sum is σ = 388761163392. Its totient is φ = 37024872672.

The previous prime is 138843272563. The next prime is 138843272651. The reversal of 138843272580 is 85272348831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157027212 + ... + 1157027331.

It is an arithmetic number, because the mean of its divisors is an integer number (16198381808).

Almost surely, 2^138843272580 is an apocalyptic number.

138843272580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138843272580 is an abundant number, since it is smaller than the sum of its proper divisors (249917890812).

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

138843272580 is a wasteful number, since it uses less digits than its factorization.

138843272580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314054555 (or 2314054553 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 138843272580 in words is "one hundred thirty-eight billion, eight hundred forty-three million, two hundred seventy-two thousand, five hundred eighty".