2289630709281 has 4 divisors (see below), whose sum is σ = 3052840945712. Its totient is φ = 1526420472852.

The previous prime is 2289630709259. The next prime is 2289630709297. The reversal of 2289630709281 is 1829070369822.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2289630709281 - 2³³ = 2281040774689 is a prime.

It is a super-2 number, since 2×2289630709281² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2289630709481) 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, 381605118211 + ... + 381605118216.

It is an arithmetic number, because the mean of its divisors is an integer number (763210236428).

Almost surely, 2^{2289630709281} is an apocalyptic number.

It is an amenable number.

2289630709281 is a deficient number, since it is larger than the sum of its proper divisors (763210236431).

2289630709281 is an equidigital number, since it uses as much as digits as its factorization.

2289630709281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763210236430.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 2289630709281 in words is "two trillion, two hundred eighty-nine billion, six hundred thirty million, seven hundred nine thousand, two hundred eighty-one".