12915863381848 has 32 divisors (see below), whose sum is σ = 27751050819360. Its totient is φ = 5520529877760.

The previous prime is 12915863381819. The next prime is 12915863381873. The reversal of 12915863381848 is 84818336851921.

It is a Smith number, since the sum of its digits (67) 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 7 ways as a sum of consecutive naturals, for example, 309148573 + ... + 309190348.

It is an arithmetic number, because the mean of its divisors is an integer number (867220338105).

Almost surely, 2^{12915863381848} is an apocalyptic number.

It is an amenable number.

12915863381848 is an abundant number, since it is smaller than the sum of its proper divisors (14835187437512).

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

12915863381848 is a wasteful number, since it uses less digits than its factorization.

12915863381848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618339307 (or 618339303 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 67.

The spelling of 12915863381848 in words is "twelve trillion, nine hundred fifteen billion, eight hundred sixty-three million, three hundred eighty-one thousand, eight hundred forty-eight".