3128172263706 has 64 divisors (see below), whose sum is σ = 7229383170048. Its totient is φ = 883877807808.

The previous prime is 3128172263701. The next prime is 3128172263747. The reversal of 3128172263706 is 6073622718213.

It is a super-2 number, since 2×3128172263706² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3128172263701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2677705 + ... + 3664211.

It is an arithmetic number, because the mean of its divisors is an integer number (112959112032).

Almost surely, 2^{3128172263706} is an apocalyptic number.

3128172263706 is an abundant number, since it is smaller than the sum of its proper divisors (4101210906342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3128172263706 is a wasteful number, since it uses less digits than its factorization.

3128172263706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987355.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 3128172263706 in words is "three trillion, one hundred twenty-eight billion, one hundred seventy-two million, two hundred sixty-three thousand, seven hundred six".