13239578769 has 8 divisors (see below), whose sum is σ = 17985843072. Its totient is φ = 8659850160.

The previous prime is 13239578747. The next prime is 13239578773. The reversal of 13239578769 is 96787593231.

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

It is not a de Polignac number, because 13239578769 - 2¹⁶ = 13239513233 is a prime.

It is a super-2 number, since 2×13239578769² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13239578969) 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, 41633737 + ... + 41634054.

It is an arithmetic number, because the mean of its divisors is an integer number (2248230384).

Almost surely, 2^13239578769 is an apocalyptic number.

It is an amenable number.

13239578769 is a deficient number, since it is larger than the sum of its proper divisors (4746264303).

13239578769 is an equidigital number, since it uses as much as digits as its factorization.

13239578769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83267847.

The product of its digits is 17146080, while the sum is 60.

The spelling of 13239578769 in words is "thirteen billion, two hundred thirty-nine million, five hundred seventy-eight thousand, seven hundred sixty-nine".