2987813568 has 56 divisors (see below), whose sum is σ = 7938455040. Its totient is φ = 991755520.

The previous prime is 2987813567. The next prime is 2987813581. The reversal of 2987813568 is 8653187892.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2987813561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13333 + ... + 78443.

Almost surely, 2^2987813568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2987813568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3969227520).

2987813568 is an abundant number, since it is smaller than the sum of its proper divisors (4950641472).

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

2987813568 is a wasteful number, since it uses less digits than its factorization.

2987813568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65365 (or 65355 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 57.

The square root of 2987813568 is about 54660.8961507219. The cubic root of 2987813568 is about 1440.2940448909.

The spelling of 2987813568 in words is "two billion, nine hundred eighty-seven million, eight hundred thirteen thousand, five hundred sixty-eight".