12642669635 has 8 divisors (see below), whose sum is σ = 15969688080. Its totient is φ = 9581812704.

The previous prime is 12642669629. The next prime is 12642669653. The reversal of 12642669635 is 53696624621.

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 12642669635 - 2²⁶ = 12575560771 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66540272 + ... + 66540461.

It is an arithmetic number, because the mean of its divisors is an integer number (1996211010).

Almost surely, 2^12642669635 is an apocalyptic number.

12642669635 is a deficient number, since it is larger than the sum of its proper divisors (3327018445).

12642669635 is a wasteful number, since it uses less digits than its factorization.

12642669635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133080757.

The product of its digits is 2799360, while the sum is 50.

The spelling of 12642669635 in words is "twelve billion, six hundred forty-two million, six hundred sixty-nine thousand, six hundred thirty-five".