2889787281 has 8 divisors (see below), whose sum is σ = 3854022624. Its totient is φ = 1926038400.

The previous prime is 2889787267. The next prime is 2889787291. The reversal of 2889787281 is 1827879882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2889787281 - 2⁵ = 2889787249 is a prime.

It is a super-2 number, since 2×2889787281² = 16701741058858745922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2889787291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107520 + ... + 131681.

It is an arithmetic number, because the mean of its divisors is an integer number (481752828).

Almost surely, 2^2889787281 is an apocalyptic number.

It is an amenable number.

2889787281 is a deficient number, since it is larger than the sum of its proper divisors (964235343).

2889787281 is a wasteful number, since it uses less digits than its factorization.

2889787281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243231.

The product of its digits is 7225344, while the sum is 60.

The square root of 2889787281 is about 53756.7417260384. The cubic root of 2889787281 is about 1424.3671807590.

The spelling of 2889787281 in words is "two billion, eight hundred eighty-nine million, seven hundred eighty-seven thousand, two hundred eighty-one".