20478373800 has 96 divisors (see below), whose sum is σ = 64377218880. Its totient is φ = 5383974400.

The previous prime is 20478373753. The next prime is 20478373813. The reversal of 20478373800 is 837387402.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 197757 + ... + 282956.

It is an arithmetic number, because the mean of its divisors is an integer number (670596030).

Almost surely, 2^20478373800 is an apocalyptic number.

20478373800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20478373800 is an abundant number, since it is smaller than the sum of its proper divisors (43898845080).

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

20478373800 is a wasteful number, since it uses less digits than its factorization.

20478373800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480803 (or 480794 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 20478373800 in words is "twenty billion, four hundred seventy-eight million, three hundred seventy-three thousand, eight hundred".