12344772878 has 8 divisors (see below), whose sum is σ = 18517955160. Its totient is φ = 6172121160.

The previous prime is 12344772877. The next prime is 12344772883. The reversal of 12344772878 is 87827744321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344772877) by changing a digit.

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, 68213 + ... + 171296.

It is an arithmetic number, because the mean of its divisors is an integer number (2314744395).

Almost surely, 2^12344772878 is an apocalyptic number.

12344772878 is a deficient number, since it is larger than the sum of its proper divisors (6173182282).

12344772878 is a wasteful number, since it uses less digits than its factorization.

12344772878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265282.

The product of its digits is 4214784, while the sum is 53.

The spelling of 12344772878 in words is "twelve billion, three hundred forty-four million, seven hundred seventy-two thousand, eight hundred seventy-eight".