20043504534 has 8 divisors (see below), whose sum is σ = 40087009080. Its totient is φ = 6681168176.

The previous prime is 20043504497. The next prime is 20043504539. The reversal of 20043504534 is 43540534002.

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

20043504534 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043504539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670292039 + ... + 1670292050.

It is an arithmetic number, because the mean of its divisors is an integer number (5010876135).

Almost surely, 2^20043504534 is an apocalyptic number.

20043504534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20043504534 is a wasteful number, since it uses less digits than its factorization.

20043504534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340584094.

The product of its (nonzero) digits is 28800, while the sum is 30.

The spelling of 20043504534 in words is "twenty billion, forty-three million, five hundred four thousand, five hundred thirty-four".