12426172719 has 8 divisors (see below), whose sum is σ = 16569580080. Its totient is φ = 8283440256.

The previous prime is 12426172697. The next prime is 12426172739. The reversal of 12426172719 is 91727162421.

12426172719 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12426172719 - 2⁵ = 12426172687 is a prime.

It is a super-5 number, since 5×12426172719⁵ (a number of 52 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12426172739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124074 + ... + 200615.

It is an arithmetic number, because the mean of its divisors is an integer number (2071197510).

Almost surely, 2^12426172719 is an apocalyptic number.

12426172719 is a deficient number, since it is larger than the sum of its proper divisors (4143407361).

12426172719 is a wasteful number, since it uses less digits than its factorization.

12426172719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337449.

The product of its digits is 84672, while the sum is 42.

The spelling of 12426172719 in words is "twelve billion, four hundred twenty-six million, one hundred seventy-two thousand, seven hundred nineteen".