2499681608 has 16 divisors (see below), whose sum is σ = 4690208880. Its totient is φ = 1248959248.

The previous prime is 2499681601. The next prime is 2499681637. The reversal of 2499681608 is 8061869942.

It is a happy number.

2499681608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2499681608.

It is not an unprimeable number, because it can be changed into a prime (2499681601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98066 + ... + 120897.

It is an arithmetic number, because the mean of its divisors is an integer number (293138055).

Almost surely, 2^2499681608 is an apocalyptic number.

It is an amenable number.

2499681608 is a deficient number, since it is larger than the sum of its proper divisors (2190527272).

2499681608 is a wasteful number, since it uses less digits than its factorization.

2499681608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220396 (or 220392 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 2499681608 is about 49996.8159786201. The cubic root of 2499681608 is about 1357.1511892611.

The spelling of 2499681608 in words is "two billion, four hundred ninety-nine million, six hundred eighty-one thousand, six hundred eight".