2649979808 has 48 divisors (see below), whose sum is σ = 6063543360. Its totient is φ = 1116450816.

The previous prime is 2649979793. The next prime is 2649979823. The reversal of 2649979808 is 8089799462.

It is an interprime number because it is at equal distance from previous prime (2649979793) and next prime (2649979823).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87041 + ... + 113472.

It is an arithmetic number, because the mean of its divisors is an integer number (126323820).

Almost surely, 2^2649979808 is an apocalyptic number.

2649979808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2649979808 is an abundant number, since it is smaller than the sum of its proper divisors (3413563552).

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

2649979808 is a wasteful number, since it uses less digits than its factorization.

2649979808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200589 (or 200581 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 62.

The square root of 2649979808 is about 51477.9545825201. The cubic root of 2649979808 is about 1383.8239888877.

The spelling of 2649979808 in words is "two billion, six hundred forty-nine million, nine hundred seventy-nine thousand, eight hundred eight".