42861805318999 has 16 divisors (see below), whose sum is σ = 44007309020160. Its totient is φ = 41731543909440.

The previous prime is 42861805318963. The next prime is 42861805319057. The reversal of 42861805318999 is 99981350816824.

It is not a de Polignac number, because 42861805318999 - 2²³ = 42861796930391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42861805318499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14063032 + ... + 16837234.

It is an arithmetic number, because the mean of its divisors is an integer number (2750456813760).

Almost surely, 2^{42861805318999} is an apocalyptic number.

42861805318999 is a deficient number, since it is larger than the sum of its proper divisors (1145503701161).

42861805318999 is a wasteful number, since it uses less digits than its factorization.

42861805318999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776950.

The product of its (nonzero) digits is 268738560, while the sum is 73.

The spelling of 42861805318999 in words is "forty-two trillion, eight hundred sixty-one billion, eight hundred five million, three hundred eighteen thousand, nine hundred ninety-nine".