12845592220 has 12 divisors (see below), whose sum is σ = 26975743704. Its totient is φ = 5138236880.

The previous prime is 12845592217. The next prime is 12845592247. The reversal of 12845592220 is 2229554821.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 321139786 + ... + 321139825.

It is an arithmetic number, because the mean of its divisors is an integer number (2247978642).

Almost surely, 2^12845592220 is an apocalyptic number.

12845592220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12845592220 is an abundant number, since it is smaller than the sum of its proper divisors (14130151484).

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

12845592220 is a wasteful number, since it uses less digits than its factorization.

12845592220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642279620 (or 642279618 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 12845592220 in words is "twelve billion, eight hundred forty-five million, five hundred ninety-two thousand, two hundred twenty".