12339438469 has 4 divisors (see below), whose sum is σ = 12672936844. Its totient is φ = 12005940096.

The previous prime is 12339438443. The next prime is 12339438499. The reversal of 12339438469 is 96483493321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96483493321 = 257 ⋅375422153.

It can be written as a sum of positive squares in 2 ways, for example, as 4285273444 + 8054165025 = 65462^2 + 89745^2 .

It is a cyclic number.

It is not a de Polignac number, because 12339438469 - 2⁵ = 12339438437 is a prime.

It is a super-2 number, since 2×12339438469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12339438499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166749132 + ... + 166749205.

It is an arithmetic number, because the mean of its divisors is an integer number (3168234211).

Almost surely, 2^12339438469 is an apocalyptic number.

It is an amenable number.

12339438469 is a deficient number, since it is larger than the sum of its proper divisors (333498375).

12339438469 is an equidigital number, since it uses as much as digits as its factorization.

12339438469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333498374.

The product of its digits is 3359232, while the sum is 52.

The spelling of 12339438469 in words is "twelve billion, three hundred thirty-nine million, four hundred thirty-eight thousand, four hundred sixty-nine".