12873991774 has 24 divisors (see below), whose sum is σ = 22576719600. Its totient is φ = 5489690976.

The previous prime is 12873991729. The next prime is 12873991787. The reversal of 12873991774 is 47719937821.

It is a happy number.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 310567 + ... + 349570.

It is an arithmetic number, because the mean of its divisors is an integer number (940696650).

Almost surely, 2^12873991774 is an apocalyptic number.

12873991774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12873991774 is a deficient number, since it is larger than the sum of its proper divisors (9702727826).

12873991774 is a wasteful number, since it uses less digits than its factorization.

12873991774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660352 (or 660345 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 58.

The spelling of 12873991774 in words is "twelve billion, eight hundred seventy-three million, nine hundred ninety-one thousand, seven hundred seventy-four".