3117885906 has 32 divisors (see below), whose sum is σ = 6458185728. Its totient is φ = 1002849680.

The previous prime is 3117885889. The next prime is 3117885907. The reversal of 3117885906 is 6095887113.

It is a super-4 number, since 4×3117885906⁴ (a number of 39 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (3117885907) 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, 57840 + ... + 97883.

It is an arithmetic number, because the mean of its divisors is an integer number (201818304).

Almost surely, 2^3117885906 is an apocalyptic number.

3117885906 is an abundant number, since it is smaller than the sum of its proper divisors (3340299822).

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

3117885906 is a wasteful number, since it uses less digits than its factorization.

3117885906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155846.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 3117885906 is about 55838.0327912795. The cubic root of 3117885906 is about 1460.8986001911.

The spelling of 3117885906 in words is "three billion, one hundred seventeen million, eight hundred eighty-five thousand, nine hundred six".