12347334777 has 4 divisors (see below), whose sum is σ = 16463113040. Its totient is φ = 8231556516.

The previous prime is 12347334773. The next prime is 12347334781. The reversal of 12347334777 is 77743374321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12347334773) and next prime (12347334781).

It is not a de Polignac number, because 12347334777 - 2² = 12347334773 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12347334773) 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, 2057889127 + ... + 2057889132.

It is an arithmetic number, because the mean of its divisors is an integer number (4115778260).

Almost surely, 2^12347334777 is an apocalyptic number.

It is an amenable number.

12347334777 is a deficient number, since it is larger than the sum of its proper divisors (4115778263).

12347334777 is an equidigital number, since it uses as much as digits as its factorization.

12347334777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115778262.

The product of its digits is 2074464, while the sum is 48.

The spelling of 12347334777 in words is "twelve billion, three hundred forty-seven million, three hundred thirty-four thousand, seven hundred seventy-seven".