20859293896 has 64 divisors (see below), whose sum is σ = 47976295680. Its totient is φ = 8298547200.

The previous prime is 20859293893. The next prime is 20859293927. The reversal of 20859293896 is 69839295802.

It is a super-2 number, since 2×20859293896² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20859293891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80580 + ... + 219571.

It is an arithmetic number, because the mean of its divisors is an integer number (749629620).

Almost surely, 2^20859293896 is an apocalyptic number.

It is an amenable number.

20859293896 is an abundant number, since it is smaller than the sum of its proper divisors (27117001784).

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

20859293896 is a wasteful number, since it uses less digits than its factorization.

20859293896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300254 (or 300250 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 61.

The spelling of 20859293896 in words is "twenty billion, eight hundred fifty-nine million, two hundred ninety-three thousand, eight hundred ninety-six".