2649084639 has 16 divisors (see below), whose sum is σ = 3708310272. Its totient is φ = 1678900608.

The previous prime is 2649084631. The next prime is 2649084667. The reversal of 2649084639 is 9364809462.

It is not a de Polignac number, because 2649084639 - 2³ = 2649084631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2649084591 and 2649084600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649084631) 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, 106522 + ... + 129015.

It is an arithmetic number, because the mean of its divisors is an integer number (231769392).

Almost surely, 2^2649084639 is an apocalyptic number.

2649084639 is a deficient number, since it is larger than the sum of its proper divisors (1059225633).

2649084639 is a wasteful number, since it uses less digits than its factorization.

2649084639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235726.

The product of its (nonzero) digits is 2239488, while the sum is 51.

The square root of 2649084639 is about 51469.2591650589. The cubic root of 2649084639 is about 1383.6681517447.

The spelling of 2649084639 in words is "two billion, six hundred forty-nine million, eighty-four thousand, six hundred thirty-nine".