12179048677 has 4 divisors (see below), whose sum is σ = 12190151916. Its totient is φ = 12167945440.

The previous prime is 12179048617. The next prime is 12179048699. The reversal of 12179048677 is 77684097121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77684097121 = 11981 ⋅6483941.

It can be written as a sum of positive squares in 2 ways, for example, as 4150709476 + 8028339201 = 64426^2 + 89601^2 .

It is a cyclic number.

It is not a de Polignac number, because 12179048677 - 2¹¹ = 12179046629 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 (12179048617) 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, 5549974 + ... + 5552167.

It is an arithmetic number, because the mean of its divisors is an integer number (3047537979).

Almost surely, 2^12179048677 is an apocalyptic number.

It is an amenable number.

12179048677 is a deficient number, since it is larger than the sum of its proper divisors (11103239).

12179048677 is a wasteful number, since it uses less digits than its factorization.

12179048677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11103238.

The product of its (nonzero) digits is 1185408, while the sum is 52.

The spelling of 12179048677 in words is "twelve billion, one hundred seventy-nine million, forty-eight thousand, six hundred seventy-seven".