2686782516 has 24 divisors (see below), whose sum is σ = 6839083104. Its totient is φ = 814176480.

The previous prime is 2686782503. The next prime is 2686782541. The reversal of 2686782516 is 6152876862.

It is a happy number.

It is a congruent 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, 10177075 + ... + 10177338.

It is an arithmetic number, because the mean of its divisors is an integer number (284961796).

Almost surely, 2^2686782516 is an apocalyptic number.

It is an amenable number.

2686782516 is an abundant number, since it is smaller than the sum of its proper divisors (4152300588).

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

2686782516 is a wasteful number, since it uses less digits than its factorization.

2686782516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20354431 (or 20354429 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 2686782516 is about 51834.1828912157. The cubic root of 2686782516 is about 1390.2007052798.

The spelling of 2686782516 in words is "two billion, six hundred eighty-six million, seven hundred eighty-two thousand, five hundred sixteen".