12381392209888 has 24 divisors (see below), whose sum is σ = 26250932522808. Its totient is φ = 5714488712064.

The previous prime is 12381392209873. The next prime is 12381392209897. The reversal of 12381392209888 is 88890229318321.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 14881480606 + ... + 14881481437.

It is an arithmetic number, because the mean of its divisors is an integer number (1093788855117).

Almost surely, 2^{12381392209888} is an apocalyptic number.

It is an amenable number.

12381392209888 is an abundant number, since it is smaller than the sum of its proper divisors (13869540312920).

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

12381392209888 is a wasteful number, since it uses less digits than its factorization.

12381392209888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29762962066 (or 29762962058 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 64.

The spelling of 12381392209888 in words is "twelve trillion, three hundred eighty-one billion, three hundred ninety-two million, two hundred nine thousand, eight hundred eighty-eight".