172119430079 has 4 divisors (see below), whose sum is σ = 172198422360. Its totient is φ = 172040437800.

The previous prime is 172119430033. The next prime is 172119430097. The reversal of 172119430079 is 970034911271.

172119430079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970034911271 = 29 ⋅33449479699.

It is a cyclic number.

It is not a de Polignac number, because 172119430079 - 2²⁰ = 172118381503 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 (172119480079) 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, 39492872 + ... + 39497229.

It is an arithmetic number, because the mean of its divisors is an integer number (43049605590).

Almost surely, 2^172119430079 is an apocalyptic number.

172119430079 is a deficient number, since it is larger than the sum of its proper divisors (78992281).

172119430079 is an equidigital number, since it uses as much as digits as its factorization.

172119430079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78992280.

The product of its (nonzero) digits is 95256, while the sum is 44.

The spelling of 172119430079 in words is "one hundred seventy-two billion, one hundred nineteen million, four hundred thirty thousand, seventy-nine".