12179462805 has 64 divisors (see below), whose sum is σ = 22195192320. Its totient is φ = 6334368768.

The previous prime is 12179462791. The next prime is 12179462837. The reversal of 12179462805 is 50826497121.

12179462805 is a `hidden beast` number, since 1 + 2 + 17 + 9 + 4 + 628 + 0 + 5 = 666.

It is not a de Polignac number, because 12179462805 - 2⁵ = 12179462773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1189789 + ... + 1199981.

It is an arithmetic number, because the mean of its divisors is an integer number (346799880).

Almost surely, 2^12179462805 is an apocalyptic number.

12179462805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12179462805 is a deficient number, since it is larger than the sum of its proper divisors (10015729515).

12179462805 is a wasteful number, since it uses less digits than its factorization.

12179462805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10427 (or 10421 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 12179462805 in words is "twelve billion, one hundred seventy-nine million, four hundred sixty-two thousand, eight hundred five".