172369908401 has 8 divisors (see below), whose sum is σ = 177066470784. Its totient is φ = 167675341680.

The previous prime is 172369908329. The next prime is 172369908407. The reversal of 172369908401 is 104809963271.

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 172369908401 - 2¹⁸ = 172369646257 is a prime.

It is a super-2 number, since 2×172369908401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172369908401.

It is not an unprimeable number, because it can be changed into a prime (172369908407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322985 + ... + 670118.

It is an arithmetic number, because the mean of its divisors is an integer number (22133308848).

Almost surely, 2^172369908401 is an apocalyptic number.

It is an amenable number.

172369908401 is a deficient number, since it is larger than the sum of its proper divisors (4696562383).

172369908401 is an equidigital number, since it uses as much as digits as its factorization.

172369908401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997831.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 172369908401 in words is "one hundred seventy-two billion, three hundred sixty-nine million, nine hundred eight thousand, four hundred one".