2687503668 has 24 divisors (see below), whose sum is σ = 6271692672. Its totient is φ = 895713024.

The previous prime is 2687503649. The next prime is 2687503669. The reversal of 2687503668 is 8663057862.

It is a self number, because there is not a number n which added to its sum of digits gives 2687503668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687503669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142021 + ... + 159827.

It is an arithmetic number, because the mean of its divisors is an integer number (261320528).

Almost surely, 2^2687503668 is an apocalyptic number.

It is an amenable number.

2687503668 is an abundant number, since it is smaller than the sum of its proper divisors (3584189004).

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

2687503668 is a wasteful number, since it uses less digits than its factorization.

2687503668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30391 (or 30389 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The square root of 2687503668 is about 51841.1387606407. The cubic root of 2687503668 is about 1390.3250741522.

The spelling of 2687503668 in words is "two billion, six hundred eighty-seven million, five hundred three thousand, six hundred sixty-eight".