20084890863 has 12 divisors (see below), whose sum is σ = 26901772440. Its totient is φ = 13328990352.

The previous prime is 20084890831. The next prime is 20084890883. The reversal of 20084890863 is 36809848002.

It is a happy number.

It is not a de Polignac number, because 20084890863 - 2⁵ = 20084890831 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20084890883) 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, 3711906 + ... + 3717312.

It is an arithmetic number, because the mean of its divisors is an integer number (2241814370).

Almost surely, 2^20084890863 is an apocalyptic number.

20084890863 is a deficient number, since it is larger than the sum of its proper divisors (6816881577).

20084890863 is an frugal number, since it uses more digits than its factorization.

20084890863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11046 (or 5639 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 20084890863 in words is "twenty billion, eighty-four million, eight hundred ninety thousand, eight hundred sixty-three".