172005895214 has 32 divisors (see below), whose sum is σ = 277590313440. Its totient is φ = 79776547200.

The previous prime is 172005895213. The next prime is 172005895261. The reversal of 172005895214 is 412598500271.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172005895211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413177 + ... + 717444.

It is an arithmetic number, because the mean of its divisors is an integer number (8674697295).

Almost surely, 2^172005895214 is an apocalyptic number.

172005895214 is a deficient number, since it is larger than the sum of its proper divisors (105584418226).

172005895214 is a wasteful number, since it uses less digits than its factorization.

172005895214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130756.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 172005895214 in words is "one hundred seventy-two billion, five million, eight hundred ninety-five thousand, two hundred fourteen".