3172199822905 has 4 divisors (see below), whose sum is σ = 3806639787492. Its totient is φ = 2537759858320.

The previous prime is 3172199822903. The next prime is 3172199822927. The reversal of 3172199822905 is 5092289912713.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 359827220736 + 2812372602169 = 599856^2 + 1677013^2 .

It is not a de Polignac number, because 3172199822905 - 2¹ = 3172199822903 is a prime.

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 3172199822905.

It is not an unprimeable number, because it can be changed into a prime (3172199822903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317219982286 + ... + 317219982295.

It is an arithmetic number, because the mean of its divisors is an integer number (951659946873).

Almost surely, 2^{3172199822905} is an apocalyptic number.

It is an amenable number.

3172199822905 is a deficient number, since it is larger than the sum of its proper divisors (634439964587).

3172199822905 is an equidigital number, since it uses as much as digits as its factorization.

3172199822905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634439964586.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 3172199822905 in words is "three trillion, one hundred seventy-two billion, one hundred ninety-nine million, eight hundred twenty-two thousand, nine hundred five".