2782680013 has 4 divisors (see below), whose sum is σ = 2787503260. Its totient is φ = 2777856768.

The previous prime is 2782679981. The next prime is 2782680023. The reversal of 2782680013 is 3100862872.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2745445609 + 37234404 = 52397^2 + 6102^2 .

It is a cyclic number.

It is not a de Polignac number, because 2782680013 - 2⁵ = 2782679981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2782680023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2410758 + ... + 2411911.

It is an arithmetic number, because the mean of its divisors is an integer number (696875815).

Almost surely, 2^2782680013 is an apocalyptic number.

It is an amenable number.

2782680013 is a deficient number, since it is larger than the sum of its proper divisors (4823247).

2782680013 is an equidigital number, since it uses as much as digits as its factorization.

2782680013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823246.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 2782680013 is about 52751.1138555386. The cubic root of 2782680013 is about 1406.5475639134.

The spelling of 2782680013 in words is "two billion, seven hundred eighty-two million, six hundred eighty thousand, thirteen".