12911225635 has 16 divisors (see below), whose sum is σ = 19316535552. Its totient is φ = 8048556000.

The previous prime is 12911225627. The next prime is 12911225689. The reversal of 12911225635 is 53652211921.

It is not a de Polignac number, because 12911225635 - 2³ = 12911225627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12911225594 and 12911225603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16767441 + ... + 16768210.

It is an arithmetic number, because the mean of its divisors is an integer number (1207283472).

Almost surely, 2^12911225635 is an apocalyptic number.

12911225635 is a deficient number, since it is larger than the sum of its proper divisors (6405309917).

12911225635 is a wasteful number, since it uses less digits than its factorization.

12911225635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33535674.

The product of its digits is 32400, while the sum is 37.

The spelling of 12911225635 in words is "twelve billion, nine hundred eleven million, two hundred twenty-five thousand, six hundred thirty-five".