172441020845 has 8 divisors (see below), whose sum is σ = 209763872376. Its totient is φ = 136063051776.

The previous prime is 172441020823. The next prime is 172441020859. The reversal of 172441020845 is 548020144271.

It can be written as a sum of positive squares in 4 ways, for example, as 66798470116 + 105642550729 = 258454^2 + 325027^2 .

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 172441020845 - 2⁸ = 172441020589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172441020799 and 172441020808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236220212 + ... + 236220941.

It is an arithmetic number, because the mean of its divisors is an integer number (26220484047).

Almost surely, 2^172441020845 is an apocalyptic number.

It is an amenable number.

172441020845 is a deficient number, since it is larger than the sum of its proper divisors (37322851531).

172441020845 is an equidigital number, since it uses as much as digits as its factorization.

172441020845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472441231.

The product of its (nonzero) digits is 71680, while the sum is 38.

The spelling of 172441020845 in words is "one hundred seventy-two billion, four hundred forty-one million, twenty thousand, eight hundred forty-five".