2491701976 has 16 divisors (see below), whose sum is σ = 4689709200. Its totient is φ = 1241112864.

The previous prime is 2491701931. The next prime is 2491701977. The reversal of 2491701976 is 6791071942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491701977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590031 + ... + 594238.

It is an arithmetic number, because the mean of its divisors is an integer number (293106825).

Almost surely, 2^2491701976 is an apocalyptic number.

It is an amenable number.

2491701976 is a deficient number, since it is larger than the sum of its proper divisors (2198007224).

2491701976 is a wasteful number, since it uses less digits than its factorization.

2491701976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184538 (or 1184534 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 2491701976 is about 49916.9507882843. The cubic root of 2491701976 is about 1355.7055236611.

The spelling of 2491701976 in words is "two billion, four hundred ninety-one million, seven hundred one thousand, nine hundred seventy-six".