2287998243838 has 64 divisors (see below), whose sum is σ = 3765982740480. Its totient is φ = 1038689568000.

The previous prime is 2287998243829. The next prime is 2287998243863. The reversal of 2287998243838 is 8383428997822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114889770 + ... + 114909682.

It is an arithmetic number, because the mean of its divisors is an integer number (58843480320).

Almost surely, 2^{2287998243838} is an apocalyptic number.

2287998243838 is a deficient number, since it is larger than the sum of its proper divisors (1477984496642).

2287998243838 is a wasteful number, since it uses less digits than its factorization.

2287998243838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21193.

The product of its digits is 668860416, while the sum is 73.

The spelling of 2287998243838 in words is "two trillion, two hundred eighty-seven billion, nine hundred ninety-eight million, two hundred forty-three thousand, eight hundred thirty-eight".