172363597805 has 48 divisors (see below), whose sum is σ = 256704313536. Its totient is φ = 110390192640.

The previous prime is 172363597781. The next prime is 172363597817. The reversal of 172363597805 is 508795363271.

It is not a de Polignac number, because 172363597805 - 2¹² = 172363593709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 387662 + ... + 703568.

It is an arithmetic number, because the mean of its divisors is an integer number (5348006532).

Almost surely, 2^172363597805 is an apocalyptic number.

It is an amenable number.

172363597805 is a deficient number, since it is larger than the sum of its proper divisors (84340715731).

172363597805 is a wasteful number, since it uses less digits than its factorization.

172363597805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316074 (or 316067 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 56.

The spelling of 172363597805 in words is "one hundred seventy-two billion, three hundred sixty-three million, five hundred ninety-seven thousand, eight hundred five".