2680445648 has 10 divisors (see below), whose sum is σ = 5193363474. Its totient is φ = 1340222816.

The previous prime is 2680445639. The next prime is 2680445657. The reversal of 2680445648 is 8465440862.

2680445648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2680445639) and next prime (2680445657).

It can be written as a sum of positive squares in only one way, i.e., 2622259264 + 58186384 = 51208^2 + 7628^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83763911 + ... + 83763942.

Almost surely, 2^2680445648 is an apocalyptic number.

It is an amenable number.

2680445648 is a deficient number, since it is larger than the sum of its proper divisors (2512917826).

2680445648 is a wasteful number, since it uses less digits than its factorization.

2680445648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167527861 (or 167527855 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 47.

The square root of 2680445648 is about 51773.0204643306. The cubic root of 2680445648 is about 1389.1068996779.

The spelling of 2680445648 in words is "two billion, six hundred eighty million, four hundred forty-five thousand, six hundred forty-eight".