2931115868 has 12 divisors (see below), whose sum is σ = 5130147120. Its totient is φ = 1465359552.

The previous prime is 2931115861. The next prime is 2931115903. The reversal of 2931115868 is 8685111392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2931115861) 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, 13421 + ... + 77732.

It is an arithmetic number, because the mean of its divisors is an integer number (427512260).

Almost surely, 2^2931115868 is an apocalyptic number.

It is an amenable number.

2931115868 is a deficient number, since it is larger than the sum of its proper divisors (2199031252).

2931115868 is a wasteful number, since it uses less digits than its factorization.

2931115868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99196 (or 99194 counting only the distinct ones).

The product of its digits is 103680, while the sum is 44.

The square root of 2931115868 is about 54139.7808270407. The cubic root of 2931115868 is about 1431.1253091527.

The spelling of 2931115868 in words is "two billion, nine hundred thirty-one million, one hundred fifteen thousand, eight hundred sixty-eight".