12488939173 has 4 divisors (see below), whose sum is σ = 12489163200. Its totient is φ = 12488715148.

The previous prime is 12488939149. The next prime is 12488939179. The reversal of 12488939173 is 37193988421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 37193988421 = 55589 ⋅669089.

It is a cyclic number.

It is not a de Polignac number, because 12488939173 - 2²¹ = 12486842021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12488939179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44586 + ... + 164212.

It is an arithmetic number, because the mean of its divisors is an integer number (3122290800).

Almost surely, 2^12488939173 is an apocalyptic number.

It is an amenable number.

12488939173 is a deficient number, since it is larger than the sum of its proper divisors (224027).

12488939173 is a wasteful number, since it uses less digits than its factorization.

12488939173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224026.

The product of its digits is 2612736, while the sum is 55.

The spelling of 12488939173 in words is "twelve billion, four hundred eighty-eight million, nine hundred thirty-nine thousand, one hundred seventy-three".