2191346368 has 14 divisors (see below), whose sum is σ = 4348453076. Its totient is φ = 1095673152.

The previous prime is 2191346351. The next prime is 2191346441. The reversal of 2191346368 is 8636431912.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17119830 + ... + 17119957.

Almost surely, 2^2191346368 is an apocalyptic number.

It is an amenable number.

2191346368 is a deficient number, since it is larger than the sum of its proper divisors (2157106708).

2191346368 is an equidigital number, since it uses as much as digits as its factorization.

2191346368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34239799 (or 34239789 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 2191346368 is about 46811.8186786200. The cubic root of 2191346368 is about 1298.8839273134.

The spelling of 2191346368 in words is "two billion, one hundred ninety-one million, three hundred forty-six thousand, three hundred sixty-eight".