12344156878 has 16 divisors (see below), whose sum is σ = 19175652000. Its totient is φ = 5952737952.

The previous prime is 12344156831. The next prime is 12344156887. The reversal of 12344156878 is 87865144321.

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, 62493 + ... + 169096.

It is an arithmetic number, because the mean of its divisors is an integer number (1198478250).

Almost surely, 2^12344156878 is an apocalyptic number.

12344156878 is a deficient number, since it is larger than the sum of its proper divisors (6831495122).

12344156878 is a wasteful number, since it uses less digits than its factorization.

12344156878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232539.

The product of its digits is 1290240, while the sum is 49.

The spelling of 12344156878 in words is "twelve billion, three hundred forty-four million, one hundred fifty-six thousand, eight hundred seventy-eight".