12172341774751 has 4 divisors (see below), whose sum is σ = 12174266870712. Its totient is φ = 12170416678792.

The previous prime is 12172341774641. The next prime is 12172341774763. The reversal of 12172341774751 is 15747714327121.

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

It is a cyclic number.

It is not a de Polignac number, because 12172341774751 - 2⁷ = 12172341774623 is a prime.

It is a super-2 number, since 2×12172341774751² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12172341774781) 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, 962538496 + ... + 962551141.

It is an arithmetic number, because the mean of its divisors is an integer number (3043566717678).

Almost surely, 2^{12172341774751} is an apocalyptic number.

12172341774751 is a deficient number, since it is larger than the sum of its proper divisors (1925095961).

12172341774751 is an equidigital number, since it uses as much as digits as its factorization.

12172341774751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925095960.

The product of its digits is 2304960, while the sum is 52.

The spelling of 12172341774751 in words is "twelve trillion, one hundred seventy-two billion, three hundred forty-one million, seven hundred seventy-four thousand, seven hundred fifty-one".