20369230578 has 48 divisors (see below), whose sum is σ = 46792826496. Its totient is φ = 6381674880.

The previous prime is 20369230571. The next prime is 20369230579. The reversal of 20369230578 is 87503296302.

20369230578 is a `hidden beast` number, since 2 + 0 + 369 + 230 + 57 + 8 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20369230571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182563 + ... + 272153.

It is an arithmetic number, because the mean of its divisors is an integer number (974850552).

Almost surely, 2^20369230578 is an apocalyptic number.

20369230578 is an abundant number, since it is smaller than the sum of its proper divisors (26423595918).

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

20369230578 is a wasteful number, since it uses less digits than its factorization.

20369230578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90359 (or 90356 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

It can be divided in two parts, 203692 and 30578, that added together give a triangular number (234270 = T₆₈₄).

The spelling of 20369230578 in words is "twenty billion, three hundred sixty-nine million, two hundred thirty thousand, five hundred seventy-eight".