20194500763820 has 48 divisors (see below), whose sum is σ = 44643910691520. Its totient is φ = 7658214660096.

The previous prime is 20194500763739. The next prime is 20194500763867. The reversal of 20194500763820 is 2836700549102.

It is a super-2 number, since 2×20194500763820² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194200625 + ... + 194304584.

It is an arithmetic number, because the mean of its divisors is an integer number (930081472740).

It is a 2-persistent number, because it is pandigital, and so is 2⋅20194500763820 = 40389001527640, but 3⋅20194500763820 = 60583502291460 is not.

Almost surely, 2^{20194500763820} is an apocalyptic number.

20194500763820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20194500763820 is an abundant number, since it is smaller than the sum of its proper divisors (24449409927700).

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

20194500763820 is a wasteful number, since it uses less digits than its factorization.

20194500763820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388505354 (or 388505352 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 20194500763820 in words is "twenty trillion, one hundred ninety-four billion, five hundred million, seven hundred sixty-three thousand, eight hundred twenty".