2491608980 has 24 divisors (see below), whose sum is σ = 5979861888. Its totient is φ = 854265888.

The previous prime is 2491608967. The next prime is 2491608983. The reversal of 2491608980 is 898061942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491608983) 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, 8898464 + ... + 8898743.

It is an arithmetic number, because the mean of its divisors is an integer number (249160912).

Almost surely, 2^2491608980 is an apocalyptic number.

2491608980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2491608980 is an abundant number, since it is smaller than the sum of its proper divisors (3488252908).

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

2491608980 is a wasteful number, since it uses less digits than its factorization.

2491608980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17797223 (or 17797221 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 2491608980 is about 49916.0192723739. The cubic root of 2491608980 is about 1355.6886574440.

The spelling of 2491608980 in words is "two billion, four hundred ninety-one million, six hundred eight thousand, nine hundred eighty".