12564745246 has 8 divisors (see below), whose sum is σ = 18922206744. Its totient is φ = 6257343000.

The previous prime is 12564745231. The next prime is 12564745247. The reversal of 12564745246 is 64254746521.

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

It is a junction number, because it is equal to n+sod(n) for n = 12564745196 and 12564745205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12564745247) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12514185 + ... + 12515188.

It is an arithmetic number, because the mean of its divisors is an integer number (2365275843).

Almost surely, 2^12564745246 is an apocalyptic number.

12564745246 is a deficient number, since it is larger than the sum of its proper divisors (6357461498).

12564745246 is a wasteful number, since it uses less digits than its factorization.

12564745246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25029626.

The product of its digits is 1612800, while the sum is 46.

The spelling of 12564745246 in words is "twelve billion, five hundred sixty-four million, seven hundred forty-five thousand, two hundred forty-six".