172479198967 has 4 divisors (see below), whose sum is σ = 172491819856. Its totient is φ = 172466578080.

The previous prime is 172479198959. The next prime is 172479198989. The reversal of 172479198967 is 769891974271.

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 172479198967 - 2³ = 172479198959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172479198896 and 172479198905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172479198917) 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, 6289923 + ... + 6317284.

It is an arithmetic number, because the mean of its divisors is an integer number (43122954964).

Almost surely, 2^172479198967 is an apocalyptic number.

172479198967 is a deficient number, since it is larger than the sum of its proper divisors (12620889).

172479198967 is a wasteful number, since it uses less digits than its factorization.

172479198967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12620888.

The product of its digits is 96018048, while the sum is 70.

The spelling of 172479198967 in words is "one hundred seventy-two billion, four hundred seventy-nine million, one hundred ninety-eight thousand, nine hundred sixty-seven".