138793728853 has 16 divisors (see below), whose sum is σ = 152315251200. Its totient is φ = 125679438144.

The previous prime is 138793728841. The next prime is 138793728863. The reversal of 138793728853 is 358827397831.

It is not a de Polignac number, because 138793728853 - 2⁹ = 138793728341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138793728833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5584348 + ... + 5609146.

It is an arithmetic number, because the mean of its divisors is an integer number (9519703200).

Almost surely, 2^138793728853 is an apocalyptic number.

138793728853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

138793728853 is a deficient number, since it is larger than the sum of its proper divisors (13521522347).

138793728853 is a wasteful number, since it uses less digits than its factorization.

138793728853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32988.

The product of its digits is 60963840, while the sum is 64.

The spelling of 138793728853 in words is "one hundred thirty-eight billion, seven hundred ninety-three million, seven hundred twenty-eight thousand, eight hundred fifty-three".