2449663688 has 64 divisors (see below), whose sum is σ = 4996857600. Its totient is φ = 1121428480.

The previous prime is 2449663661. The next prime is 2449663747. The reversal of 2449663688 is 8863669442.

It is a happy number.

It is a super-2 number, since 2×2449663688² = 12001704368611522688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143098 + ... + 1145238.

It is an arithmetic number, because the mean of its divisors is an integer number (78075900).

Almost surely, 2^2449663688 is an apocalyptic number.

It is an amenable number.

2449663688 is an abundant number, since it is smaller than the sum of its proper divisors (2547193912).

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

2449663688 is a wasteful number, since it uses less digits than its factorization.

2449663688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390 (or 2386 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 56.

The square root of 2449663688 is about 49494.0773022389. The cubic root of 2449663688 is about 1348.0380624226.

The spelling of 2449663688 in words is "two billion, four hundred forty-nine million, six hundred sixty-three thousand, six hundred eighty-eight".