2987169856 has 28 divisors (see below), whose sum is σ = 6466545360. Its totient is φ = 1357804160.

The previous prime is 2987169851. The next prime is 2987169863. The reversal of 2987169856 is 6589617892.

It is a junction number, because it is equal to n+sod(n) for n = 2987169794 and 2987169803.

It is not an unprimeable number, because it can be changed into a prime (2987169851) 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, 2120866 + ... + 2122273.

Almost surely, 2^2987169856 is an apocalyptic number.

It is an amenable number.

2987169856 is an abundant number, since it is smaller than the sum of its proper divisors (3479375504).

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

2987169856 is a wasteful number, since it uses less digits than its factorization.

2987169856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243162 (or 4243152 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 61.

The square root of 2987169856 is about 54655.0076022317. The cubic root of 2987169856 is about 1440.1906023423.

The spelling of 2987169856 in words is "two billion, nine hundred eighty-seven million, one hundred sixty-nine thousand, eight hundred fifty-six".