20681286283 has 12 divisors (see below), whose sum is σ = 24060193392. Its totient is φ = 17725070160.

The previous prime is 20681286281. The next prime is 20681286299. The reversal of 20681286283 is 38268218602.

It is not a de Polignac number, because 20681286283 - 2¹ = 20681286281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20681286281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 849466 + ... + 873472.

It is an arithmetic number, because the mean of its divisors is an integer number (2005016116).

Almost surely, 2^20681286283 is an apocalyptic number.

20681286283 is a deficient number, since it is larger than the sum of its proper divisors (3378907109).

20681286283 is a wasteful number, since it uses less digits than its factorization.

20681286283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41602 (or 41595 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 20681286283 in words is "twenty billion, six hundred eighty-one million, two hundred eighty-six thousand, two hundred eighty-three".