20850506798 has 48 divisors (see below), whose sum is σ = 34969783632. Its totient is φ = 9314870400.

The previous prime is 20850506791. The next prime is 20850506849. The reversal of 20850506798 is 89760505802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20850506791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8770586 + ... + 8772962.

It is an arithmetic number, because the mean of its divisors is an integer number (728537159).

Almost surely, 2^20850506798 is an apocalyptic number.

20850506798 is a deficient number, since it is larger than the sum of its proper divisors (14119276834).

20850506798 is a wasteful number, since it uses less digits than its factorization.

20850506798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3009 (or 2998 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 20850506798 in words is "twenty billion, eight hundred fifty million, five hundred six thousand, seven hundred ninety-eight".