172641599969 has 8 divisors (see below), whose sum is σ = 172908288000. Its totient is φ = 172374978672.

The previous prime is 172641599929. The next prime is 172641599989. The reversal of 172641599969 is 969995146271.

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

It is a cyclic number.

It is not a de Polignac number, because 172641599969 - 2²⁰ = 172640551393 is a prime.

It is a super-2 number, since 2×172641599969² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172641599899 and 172641599908.

It is not an unprimeable number, because it can be changed into a prime (172641599929) 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, 8156402 + ... + 8177540.

It is an arithmetic number, because the mean of its divisors is an integer number (21613536000).

Almost surely, 2^172641599969 is an apocalyptic number.

It is an amenable number.

172641599969 is a deficient number, since it is larger than the sum of its proper divisors (266688031).

172641599969 is a wasteful number, since it uses less digits than its factorization.

172641599969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33367.

The product of its digits is 66134880, while the sum is 68.

The spelling of 172641599969 in words is "one hundred seventy-two billion, six hundred forty-one million, five hundred ninety-nine thousand, nine hundred sixty-nine".