12259843506 has 32 divisors (see below), whose sum is σ = 27758142720. Its totient is φ = 4009507632.

The previous prime is 12259843457. The next prime is 12259843511. The reversal of 12259843506 is 60534895221.

12259843506 is a `hidden beast` number, since 1 + 2 + 2 + 598 + 4 + 3 + 50 + 6 = 666.

It is a super-2 number, since 2×12259843506² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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, 2138970 + ... + 2144693.

It is an arithmetic number, because the mean of its divisors is an integer number (867441960).

Almost surely, 2^12259843506 is an apocalyptic number.

12259843506 is an abundant number, since it is smaller than the sum of its proper divisors (15498299214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12259843506 is a wasteful number, since it uses less digits than its factorization.

12259843506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4283727 (or 4283721 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 12259843506 in words is "twelve billion, two hundred fifty-nine million, eight hundred forty-three thousand, five hundred six".