20845822835 has 8 divisors (see below), whose sum is σ = 25015810560. Its totient is φ = 16676109504.

The previous prime is 20845822831. The next prime is 20845822871. The reversal of 20845822835 is 53822854802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20845822835 - 2² = 20845822831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20845822835.

It is not an unprimeable number, because it can be changed into a prime (20845822831) 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, 181319 + ... + 273071.

It is an arithmetic number, because the mean of its divisors is an integer number (3126976320).

Almost surely, 2^20845822835 is an apocalyptic number.

20845822835 is a deficient number, since it is larger than the sum of its proper divisors (4169987725).

20845822835 is an equidigital number, since it uses as much as digits as its factorization.

20845822835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137197.

The product of its (nonzero) digits is 1228800, while the sum is 47.

The spelling of 20845822835 in words is "twenty billion, eight hundred forty-five million, eight hundred twenty-two thousand, eight hundred thirty-five".