12140795479 has 4 divisors (see below), whose sum is σ = 12668656176. Its totient is φ = 11612934784.

The previous prime is 12140795477. The next prime is 12140795507. The reversal of 12140795479 is 97459704121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12140795479 - 2¹ = 12140795477 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140795473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263930314 + ... + 263930359.

It is an arithmetic number, because the mean of its divisors is an integer number (3167164044).

Almost surely, 2^12140795479 is an apocalyptic number.

12140795479 is a deficient number, since it is larger than the sum of its proper divisors (527860697).

12140795479 is an equidigital number, since it uses as much as digits as its factorization.

12140795479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527860696.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 12140795479 in words is "twelve billion, one hundred forty million, seven hundred ninety-five thousand, four hundred seventy-nine".