16286856821369 has 32 divisors (see below), whose sum is σ = 17890523136000. Its totient is φ = 14757964985344.

The previous prime is 16286856821353. The next prime is 16286856821383. The reversal of 16286856821369 is 96312865868261.

It is a cyclic number.

It is not a de Polignac number, because 16286856821369 - 2⁴ = 16286856821353 is a prime.

It is a super-2 number, since 2×16286856821369² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16286856821969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1042084247 + ... + 1042099875.

It is an arithmetic number, because the mean of its divisors is an integer number (559078848000).

Almost surely, 2^{16286856821369} is an apocalyptic number.

It is an amenable number.

16286856821369 is a deficient number, since it is larger than the sum of its proper divisors (1603666314631).

16286856821369 is a wasteful number, since it uses less digits than its factorization.

16286856821369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21577.

The product of its digits is 358318080, while the sum is 71.

The spelling of 16286856821369 in words is "sixteen trillion, two hundred eighty-six billion, eight hundred fifty-six million, eight hundred twenty-one thousand, three hundred sixty-nine".