20427000834 has 16 divisors (see below), whose sum is σ = 40987080288. Its totient is φ = 6786820512.

The previous prime is 20427000829. The next prime is 20427000851. The reversal of 20427000834 is 43800072402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5542947 + ... + 5546630.

It is an arithmetic number, because the mean of its divisors is an integer number (2561692518).

Almost surely, 2^20427000834 is an apocalyptic number.

20427000834 is an abundant number, since it is smaller than the sum of its proper divisors (20560079454).

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

20427000834 is a wasteful number, since it uses less digits than its factorization.

20427000834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11089889.

The product of its (nonzero) digits is 10752, while the sum is 30.

The spelling of 20427000834 in words is "twenty billion, four hundred twenty-seven million, eight hundred thirty-four", and thus it is an aban number.