2931691268 has 24 divisors (see below), whose sum is σ = 5631215520. Its totient is φ = 1324408320.

The previous prime is 2931691261. The next prime is 2931691277. The reversal of 2931691268 is 8621961392.

2931691268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2931691261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197213 + ... + 211556.

It is an arithmetic number, because the mean of its divisors is an integer number (234633980).

Almost surely, 2^2931691268 is an apocalyptic number.

It is an amenable number.

2931691268 is a deficient number, since it is larger than the sum of its proper divisors (2699524252).

2931691268 is a wasteful number, since it uses less digits than its factorization.

2931691268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408947 (or 408945 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 2931691268 is about 54145.0945885221. The cubic root of 2931691268 is about 1431.2189498981.

The spelling of 2931691268 in words is "two billion, nine hundred thirty-one million, six hundred ninety-one thousand, two hundred sixty-eight".