2787156516 has 48 divisors (see below), whose sum is σ = 6581120000. Its totient is φ = 917985312.

The previous prime is 2787156479. The next prime is 2787156539. The reversal of 2787156516 is 6156517872.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 614505 + ... + 619023.

Almost surely, 2^2787156516 is an apocalyptic number.

It is an amenable number.

2787156516 is an abundant number, since it is smaller than the sum of its proper divisors (3793963484).

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

2787156516 is a wasteful number, since it uses less digits than its factorization.

2787156516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128 (or 5126 counting only the distinct ones).

The product of its digits is 705600, while the sum is 48.

The square root of 2787156516 is about 52793.5272168852. The cubic root of 2787156516 is about 1407.3013984689.

The spelling of 2787156516 in words is "two billion, seven hundred eighty-seven million, one hundred fifty-six thousand, five hundred sixteen".