12812921248 has 24 divisors (see below), whose sum is σ = 25279950528. Its totient is φ = 6392616384.

The previous prime is 12812921239. The next prime is 12812921257. The reversal of 12812921248 is 84212921821.

It is an interprime number because it is at equal distance from previous prime (12812921239) and next prime (12812921257).

It is a self number, because there is not a number n which added to its sum of digits gives 12812921248.

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, 417586 + ... + 447217.

It is an arithmetic number, because the mean of its divisors is an integer number (1053331272).

Almost surely, 2^12812921248 is an apocalyptic number.

It is an amenable number.

12812921248 is a deficient number, since it is larger than the sum of its proper divisors (12467029280).

12812921248 is an equidigital number, since it uses as much as digits as its factorization.

12812921248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865276 (or 865268 counting only the distinct ones).

The product of its digits is 36864, while the sum is 40.

The spelling of 12812921248 in words is "twelve billion, eight hundred twelve million, nine hundred twenty-one thousand, two hundred forty-eight".