2987813569 has 16 divisors (see below), whose sum is σ = 3266197200. Its totient is φ = 2716471296.

The previous prime is 2987813567. The next prime is 2987813581. The reversal of 2987813569 is 9653187892.

It can be written as a sum of positive squares in 8 ways, for example, as 93373569 + 2894440000 = 9663^2 + 53800^2 .

It is a cyclic number.

It is not a de Polignac number, because 2987813569 - 2¹ = 2987813567 is a prime.

It is a super-2 number, since 2×2987813569² = 17854059846201035522, which contains 22 as substring.

It is a Duffinian number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 879927 + ... + 883315.

It is an arithmetic number, because the mean of its divisors is an integer number (204137325).

Almost surely, 2^2987813569 is an apocalyptic number.

It is an amenable number.

2987813569 is a deficient number, since it is larger than the sum of its proper divisors (278383631).

2987813569 is a wasteful number, since it uses less digits than its factorization.

2987813569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404.

The product of its digits is 6531840, while the sum is 58.

The square root of 2987813569 is about 54660.8961598692. The cubic root of 2987813569 is about 1440.2940450515.

The spelling of 2987813569 in words is "two billion, nine hundred eighty-seven million, eight hundred thirteen thousand, five hundred sixty-nine".