3172117866 has 16 divisors (see below), whose sum is σ = 6346653600. Its totient is φ = 1056969648.

The previous prime is 3172117813. The next prime is 3172117867. The reversal of 3172117866 is 6687112713.

It is not an unprimeable number, because it can be changed into a prime (3172117867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83461 + ... + 115368.

It is an arithmetic number, because the mean of its divisors is an integer number (396665850).

Almost surely, 2^3172117866 is an apocalyptic number.

3172117866 is an abundant number, since it is smaller than the sum of its proper divisors (3174535734).

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

3172117866 is a wasteful number, since it uses less digits than its factorization.

3172117866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201493.

The product of its digits is 84672, while the sum is 42.

The square root of 3172117866 is about 56321.5577376905. The cubic root of 3172117866 is about 1469.3201641468.

The spelling of 3172117866 in words is "three billion, one hundred seventy-two million, one hundred seventeen thousand, eight hundred sixty-six".