2439964765 has 16 divisors (see below), whose sum is σ = 3402956160. Its totient is φ = 1644759360.

The previous prime is 2439964739. The next prime is 2439964777. The reversal of 2439964765 is 5674699342.

It is not a de Polignac number, because 2439964765 - 2¹⁹ = 2439440477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 588726 + ... + 592855.

It is an arithmetic number, because the mean of its divisors is an integer number (212684760).

Almost surely, 2^2439964765 is an apocalyptic number.

It is an amenable number.

2439964765 is a deficient number, since it is larger than the sum of its proper divisors (962991395).

2439964765 is a wasteful number, since it uses less digits than its factorization.

2439964765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181652.

The product of its digits is 9797760, while the sum is 55.

The square root of 2439964765 is about 49395.9994837639. Note that the first 3 decimals coincide. The cubic root of 2439964765 is about 1346.2566191513.

The spelling of 2439964765 in words is "two billion, four hundred thirty-nine million, nine hundred sixty-four thousand, seven hundred sixty-five".