138769320823 has 8 divisors (see below), whose sum is σ = 158631151392. Its totient is φ = 118916900736.

The previous prime is 138769320779. The next prime is 138769320829. The reversal of 138769320823 is 328023967831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138769320823 - 2⁹ = 138769320311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138769320829) 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, 2320990 + ... + 2380027.

It is an arithmetic number, because the mean of its divisors is an integer number (19828893924).

Almost surely, 2^138769320823 is an apocalyptic number.

138769320823 is a deficient number, since it is larger than the sum of its proper divisors (19861830569).

138769320823 is an equidigital number, since it uses as much as digits as its factorization.

138769320823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705241.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 138769320823 in words is "one hundred thirty-eight billion, seven hundred sixty-nine million, three hundred twenty thousand, eight hundred twenty-three".