2687765216 has 24 divisors (see below), whose sum is σ = 5292879480. Its totient is φ = 1343541888.

The previous prime is 2687765183. The next prime is 2687765221. The reversal of 2687765216 is 6125677862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159230 + ... + 175298.

It is an arithmetic number, because the mean of its divisors is an integer number (220536645).

Almost surely, 2^2687765216 is an apocalyptic number.

It is an amenable number.

2687765216 is a deficient number, since it is larger than the sum of its proper divisors (2605114264).

2687765216 is a wasteful number, since it uses less digits than its factorization.

2687765216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21306 (or 21298 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The square root of 2687765216 is about 51843.6612904606. The cubic root of 2687765216 is about 1390.3701748592.

The spelling of 2687765216 in words is "two billion, six hundred eighty-seven million, seven hundred sixty-five thousand, two hundred sixteen".