12669002639 has 4 divisors (see below), whose sum is σ = 12669883056. Its totient is φ = 12668122224.

The previous prime is 12669002627. The next prime is 12669002641. The reversal of 12669002639 is 93620096621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12669002639 - 2²⁸ = 12400567183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12669002639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12669007639) 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, 418259 + ... + 447524.

It is an arithmetic number, because the mean of its divisors is an integer number (3167470764).

Almost surely, 2^12669002639 is an apocalyptic number.

12669002639 is a deficient number, since it is larger than the sum of its proper divisors (880417).

12669002639 is an equidigital number, since it uses as much as digits as its factorization.

12669002639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880416.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 12669002639 in words is "twelve billion, six hundred sixty-nine million, two thousand, six hundred thirty-nine".