2987840851 has 4 divisors (see below), whose sum is σ = 3018643432. Its totient is φ = 2957038272.

The previous prime is 2987840819. The next prime is 2987840861. The reversal of 2987840851 is 1580487892.

It is a happy number.

2987840851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2987840851 - 2⁵ = 2987840819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2987840861) 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, 15401145 + ... + 15401338.

It is an arithmetic number, because the mean of its divisors is an integer number (754660858).

Almost surely, 2^2987840851 is an apocalyptic number.

2987840851 is a deficient number, since it is larger than the sum of its proper divisors (30802581).

2987840851 is an equidigital number, since it uses as much as digits as its factorization.

2987840851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30802580.

The product of its (nonzero) digits is 1290240, while the sum is 52.

The square root of 2987840851 is about 54661.1457161300. The cubic root of 2987840851 is about 1440.2984288572.

The spelling of 2987840851 in words is "two billion, nine hundred eighty-seven million, eight hundred forty thousand, eight hundred fifty-one".