12177824879 has 16 divisors (see below), whose sum is σ = 13898497536. Its totient is φ = 10570910400.

The previous prime is 12177824851. The next prime is 12177824909. The reversal of 12177824879 is 97842877121.

It is a cyclic number.

It is not a de Polignac number, because 12177824879 - 2³² = 7882857583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12177824179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266057 + ... + 308450.

It is an arithmetic number, because the mean of its divisors is an integer number (868656096).

Almost surely, 2^12177824879 is an apocalyptic number.

12177824879 is a deficient number, since it is larger than the sum of its proper divisors (1720672657).

12177824879 is a wasteful number, since it uses less digits than its factorization.

12177824879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574606.

The product of its digits is 3161088, while the sum is 56.

The spelling of 12177824879 in words is "twelve billion, one hundred seventy-seven million, eight hundred twenty-four thousand, eight hundred seventy-nine".