2491933907 has 2 divisors, whose sum is σ = 2491933908. Its totient is φ = 2491933906.

The previous prime is 2491933903. The next prime is 2491933909. The reversal of 2491933907 is 7093391942.

It is a happy number.

2491933907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2491933907 - 2² = 2491933903 is a prime.

Together with 2491933909, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2491933901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245966953 + 1245966954.

It is an arithmetic number, because the mean of its divisors is an integer number (1245966954).

Almost surely, 2^2491933907 is an apocalyptic number.

2491933907 is a deficient number, since it is larger than the sum of its proper divisors (1).

2491933907 is an equidigital number, since it uses as much as digits as its factorization.

2491933907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 2491933907 is about 49919.2739029726. The cubic root of 2491933907 is about 1355.7475859925.

The spelling of 2491933907 in words is "two billion, four hundred ninety-one million, nine hundred thirty-three thousand, nine hundred seven".