2389782663 has 16 divisors (see below), whose sum is σ = 3622755840. Its totient is φ = 1556136792.

The previous prime is 2389782649. The next prime is 2389782683. The reversal of 2389782663 is 3662879832.

It is a happy number.

It is not a de Polignac number, because 2389782663 - 2⁵ = 2389782631 is a prime.

It is a super-2 number, since 2×2389782663² = 11422122352750743138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389782683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1028031 + ... + 1030352.

It is an arithmetic number, because the mean of its divisors is an integer number (226422240).

Almost surely, 2^2389782663 is an apocalyptic number.

2389782663 is a deficient number, since it is larger than the sum of its proper divisors (1232973177).

2389782663 is a wasteful number, since it uses less digits than its factorization.

2389782663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058435 (or 2058429 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 2389782663 is about 48885.4033736043. The cubic root of 2389782663 is about 1336.9632470284.

The spelling of 2389782663 in words is "two billion, three hundred eighty-nine million, seven hundred eighty-two thousand, six hundred sixty-three".