12804291840 has 72 divisors (see below), whose sum is σ = 40893719328. Its totient is φ = 3414476800.

The previous prime is 12804291793. The next prime is 12804291887. The reversal of 12804291840 is 4819240821.

It is an interprime number because it is at equal distance from previous prime (12804291793) and next prime (12804291887).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1663386 + ... + 1671065.

It is an arithmetic number, because the mean of its divisors is an integer number (567968324).

Almost surely, 2^12804291840 is an apocalyptic number.

12804291840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12804291840 is an abundant number, since it is smaller than the sum of its proper divisors (28089427488).

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

12804291840 is an equidigital number, since it uses as much as digits as its factorization.

12804291840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334475 (or 3334461 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The spelling of 12804291840 in words is "twelve billion, eight hundred four million, two hundred ninety-one thousand, eight hundred forty".