12389397173880 has 64 divisors (see below), whose sum is σ = 37175210267040. Its totient is φ = 3303215357952.

The previous prime is 12389397173827. The next prime is 12389397173893. The reversal of 12389397173880 is 8837179398321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9109969 + ... + 10381248.

Almost surely, 2^{12389397173880} is an apocalyptic number.

12389397173880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12389397173880 is an abundant number, since it is smaller than the sum of its proper divisors (24785813093160).

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

12389397173880 is a wasteful number, since it uses less digits than its factorization.

12389397173880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19496528 (or 19496524 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 69.

The spelling of 12389397173880 in words is "twelve trillion, three hundred eighty-nine billion, three hundred ninety-seven million, one hundred seventy-three thousand, eight hundred eighty".