12642925269 has 64 divisors (see below), whose sum is σ = 19631259648. Its totient is φ = 7173619200.

The previous prime is 12642925237. The next prime is 12642925297. The reversal of 12642925269 is 96252924621.

It is not a de Polignac number, because 12642925269 - 2⁵ = 12642925237 is a prime.

It is a super-4 number, since 4×12642925269⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642925069) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8536009 + ... + 8537489.

It is an arithmetic number, because the mean of its divisors is an integer number (306738432).

Almost surely, 2^12642925269 is an apocalyptic number.

It is an amenable number.

12642925269 is a deficient number, since it is larger than the sum of its proper divisors (6988334379).

12642925269 is a wasteful number, since it uses less digits than its factorization.

12642925269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858.

The product of its digits is 933120, while the sum is 48.

The spelling of 12642925269 in words is "twelve billion, six hundred forty-two million, nine hundred twenty-five thousand, two hundred sixty-nine".