16287215028863 has 4 divisors (see below), whose sum is σ = 16355362372320. Its totient is φ = 16219067685408.

The previous prime is 16287215028787. The next prime is 16287215028901. The reversal of 16287215028863 is 36882051278261.

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

It is a cyclic number.

It is not a de Polignac number, because 16287215028863 - 2²⁰ = 16287213980287 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 (16287215028263) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34073671370 + ... + 34073671847.

It is an arithmetic number, because the mean of its divisors is an integer number (4088840593080).

Almost surely, 2^{16287215028863} is an apocalyptic number.

16287215028863 is a deficient number, since it is larger than the sum of its proper divisors (68147343457).

16287215028863 is an equidigital number, since it uses as much as digits as its factorization.

16287215028863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68147343456.

The product of its (nonzero) digits is 15482880, while the sum is 59.

The spelling of 16287215028863 in words is "sixteen trillion, two hundred eighty-seven billion, two hundred fifteen million, twenty-eight thousand, eight hundred sixty-three".