20735804528 has 20 divisors (see below), whose sum is σ = 40184407200. Its totient is φ = 10365634944.

The previous prime is 20735804521. The next prime is 20735804533. The reversal of 20735804528 is 82540853702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20735804521) 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 3 ways as a sum of consecutive naturals, for example, 65000 + ... + 213767.

It is an arithmetic number, because the mean of its divisors is an integer number (2009220360).

Almost surely, 2^20735804528 is an apocalyptic number.

It is an amenable number.

20735804528 is a deficient number, since it is larger than the sum of its proper divisors (19448602672).

20735804528 is a wasteful number, since it uses less digits than its factorization.

20735804528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283424 (or 283418 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 20735804528 in words is "twenty billion, seven hundred thirty-five million, eight hundred four thousand, five hundred twenty-eight".