12645654635 has 8 divisors (see below), whose sum is σ = 15222657456. Its totient is φ = 10084609120.

The previous prime is 12645654569. The next prime is 12645654667. The reversal of 12645654635 is 53645654621.

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

It is not a de Polignac number, because 12645654635 - 2⁸ = 12645654379 is a prime.

It is a super-2 number, since 2×12645654635² (a number of 21 digits) contains 22 as substring.

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 12645654635.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3987581 + ... + 3990750.

It is an arithmetic number, because the mean of its divisors is an integer number (1902832182).

Almost surely, 2^12645654635 is an apocalyptic number.

12645654635 is a deficient number, since it is larger than the sum of its proper divisors (2577002821).

12645654635 is an equidigital number, since it uses as much as digits as its factorization.

12645654635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7978653.

The product of its digits is 2592000, while the sum is 47.

The spelling of 12645654635 in words is "twelve billion, six hundred forty-five million, six hundred fifty-four thousand, six hundred thirty-five".