2639533828 has 24 divisors (see below), whose sum is σ = 4658653440. Its totient is φ = 1308516000.

The previous prime is 2639533823. The next prime is 2639533847. The reversal of 2639533828 is 8283359362.

It is not an unprimeable number, because it can be changed into a prime (2639533823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477078 + ... + 482578.

It is an arithmetic number, because the mean of its divisors is an integer number (194110560).

Almost surely, 2^2639533828 is an apocalyptic number.

It is an amenable number.

2639533828 is a deficient number, since it is larger than the sum of its proper divisors (2019119612).

2639533828 is a wasteful number, since it uses less digits than its factorization.

2639533828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6507 (or 6505 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The square root of 2639533828 is about 51376.3936842593. The cubic root of 2639533828 is about 1382.0032915717.

The spelling of 2639533828 in words is "two billion, six hundred thirty-nine million, five hundred thirty-three thousand, eight hundred twenty-eight".