13978815195648 has 80 divisors (see below), whose sum is σ = 37609154976096. Its totient is φ = 4613470310400.

The previous prime is 13978815195643. The next prime is 13978815195673. The reversal of 13978815195648 is 84659151887931.

It is a self number, because there is not a number n which added to its sum of digits gives 13978815195648.

It is not an unprimeable number, because it can be changed into a prime (13978815195641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44898286 + ... + 45208557.

Almost surely, 2^{13978815195648} is an apocalyptic number.

It is an amenable number.

13978815195648 is an abundant number, since it is smaller than the sum of its proper divisors (23630339780448).

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

13978815195648 is an equidigital number, since it uses as much as digits as its factorization.

13978815195648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90106965 (or 90106949 counting only the distinct ones).

The product of its digits is 522547200, while the sum is 75.

The spelling of 13978815195648 in words is "thirteen trillion, nine hundred seventy-eight billion, eight hundred fifteen million, one hundred ninety-five thousand, six hundred forty-eight".