2491192808 has 32 divisors (see below), whose sum is σ = 5049475200. Its totient is φ = 1145396928.

The previous prime is 2491192807. The next prime is 2491192819. The reversal of 2491192808 is 8082911942.

2491192808 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 (2491192807) 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, 18188 + ... + 72891.

It is an arithmetic number, because the mean of its divisors is an integer number (157796100).

Almost surely, 2^2491192808 is an apocalyptic number.

It is an amenable number.

2491192808 is an abundant number, since it is smaller than the sum of its proper divisors (2558282392).

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

2491192808 is a wasteful number, since it uses less digits than its factorization.

2491192808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91361 (or 91357 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 2491192808 is about 49911.8503764387. The cubic root of 2491192808 is about 1355.6131732783.

The spelling of 2491192808 in words is "two billion, four hundred ninety-one million, one hundred ninety-two thousand, eight hundred eight".