20324543790 has 16 divisors (see below), whose sum is σ = 48778905168. Its totient is φ = 5419878336.

The previous prime is 20324543777. The next prime is 20324543861. The reversal of 20324543790 is 9734542302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338742367 + ... + 338742426.

It is an arithmetic number, because the mean of its divisors is an integer number (3048681573).

Almost surely, 2^20324543790 is an apocalyptic number.

20324543790 is an abundant number, since it is smaller than the sum of its proper divisors (28454361378).

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

20324543790 is a wasteful number, since it uses less digits than its factorization.

20324543790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677484803.

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 20324543790 in words is "twenty billion, three hundred twenty-four million, five hundred forty-three thousand, seven hundred ninety".