2782260715985 has 8 divisors (see below), whose sum is σ = 3338722643496. Its totient is φ = 2225802049920.

The previous prime is 2782260715943. The next prime is 2782260716063. The reversal of 2782260715985 is 5895170622872.

2782260715985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15604007056 + 2766656708929 = 124916^2 + 1663327^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2782260715985 - 2²⁶ = 2782193607121 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1858637 + ... + 3003173.

It is an arithmetic number, because the mean of its divisors is an integer number (417340330437).

Almost surely, 2^{2782260715985} is an apocalyptic number.

It is an amenable number.

2782260715985 is a deficient number, since it is larger than the sum of its proper divisors (556461927511).

2782260715985 is a wasteful number, since it uses less digits than its factorization.

2782260715985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630723.

The product of its (nonzero) digits is 33868800, while the sum is 62.

The spelling of 2782260715985 in words is "two trillion, seven hundred eighty-two billion, two hundred sixty million, seven hundred fifteen thousand, nine hundred eighty-five".