12919773870 has 24 divisors (see below), whose sum is σ = 33591412296. Its totient is φ = 3445273008.

The previous prime is 12919773857. The next prime is 12919773887. The reversal of 12919773870 is 7837791921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71776432 + ... + 71776611.

It is an arithmetic number, because the mean of its divisors is an integer number (1399642179).

Almost surely, 2^12919773870 is an apocalyptic number.

12919773870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12919773870 is an abundant number, since it is smaller than the sum of its proper divisors (20671638426).

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

12919773870 is a wasteful number, since it uses less digits than its factorization.

12919773870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143553056 (or 143553053 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 54.

The spelling of 12919773870 in words is "twelve billion, nine hundred nineteen million, seven hundred seventy-three thousand, eight hundred seventy".