138233608079 has 8 divisors (see below), whose sum is σ = 164850017280. Its totient is φ = 113334386616.

The previous prime is 138233608067. The next prime is 138233608133. The reversal of 138233608079 is 970806332831.

It is a happy number.

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 138233608079 - 2⁴ = 138233608063 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 (138233607079) 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, 429296759 + ... + 429297080.

It is an arithmetic number, because the mean of its divisors is an integer number (20606252160).

Almost surely, 2^138233608079 is an apocalyptic number.

138233608079 is a deficient number, since it is larger than the sum of its proper divisors (26616409201).

138233608079 is an equidigital number, since it uses as much as digits as its factorization.

138233608079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858593869.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 138233608079 in words is "one hundred thirty-eight billion, two hundred thirty-three million, six hundred eight thousand, seventy-nine".