12669319531 has 8 divisors (see below), whose sum is σ = 13823681328. Its totient is φ = 11515392000.

The previous prime is 12669319493. The next prime is 12669319541. The reversal of 12669319531 is 13591396621.

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

It is a 12-Lehmer number, since φ(12669319531) divides (12669319531-1)¹².

It is a cyclic number.

It is not a de Polignac number, because 12669319531 - 2¹¹ = 12669317483 is a prime.

It is a super-2 number, since 2×12669319531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12669319541) 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, 45990 + ... + 165691.

It is an arithmetic number, because the mean of its divisors is an integer number (1727960166).

Almost surely, 2^12669319531 is an apocalyptic number.

12669319531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12669319531 is the 50338-th centered decagonal number.

12669319531 is a deficient number, since it is larger than the sum of its proper divisors (1154361797).

12669319531 is a wasteful number, since it uses less digits than its factorization.

12669319531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217133.

The product of its digits is 262440, while the sum is 46.

The spelling of 12669319531 in words is "twelve billion, six hundred sixty-nine million, three hundred nineteen thousand, five hundred thirty-one".