21112934286 has 16 divisors (see below), whose sum is σ = 42227305344. Its totient is φ = 7037405304.

The previous prime is 21112934281. The next prime is 21112934299. The reversal of 21112934286 is 68243921112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112934281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276855 + ... + 344781.

It is an arithmetic number, because the mean of its divisors is an integer number (2639206584).

Almost surely, 2^21112934286 is an apocalyptic number.

21112934286 is an abundant number, since it is smaller than the sum of its proper divisors (21114371058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21112934286 is a wasteful number, since it uses less digits than its factorization.

21112934286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119735.

The product of its digits is 41472, while the sum is 39.

The spelling of 21112934286 in words is "twenty-one billion, one hundred twelve million, nine hundred thirty-four thousand, two hundred eighty-six".