2287998243841 has 4 divisors (see below), whose sum is σ = 2288020316500. Its totient is φ = 2287976171184.

The previous prime is 2287998243829. The next prime is 2287998243863. The reversal of 2287998243841 is 1483428997822.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1575223296241 + 712774947600 = 1255079^2 + 844260^2 .

It is a cyclic number.

It is not a de Polignac number, because 2287998243841 - 2⁹ = 2287998243329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2287998249841) 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, 10880106 + ... + 11088403.

It is an arithmetic number, because the mean of its divisors is an integer number (572005079125).

Almost surely, 2^{2287998243841} is an apocalyptic number.

It is an amenable number.

2287998243841 is a deficient number, since it is larger than the sum of its proper divisors (22072659).

2287998243841 is a wasteful number, since it uses less digits than its factorization.

2287998243841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22072658.

The product of its digits is 111476736, while the sum is 67.

The spelling of 2287998243841 in words is "two trillion, two hundred eighty-seven billion, nine hundred ninety-eight million, two hundred forty-three thousand, eight hundred forty-one".