19183820300020 has 12 divisors (see below), whose sum is σ = 40286022630084. Its totient is φ = 7673528120000.

The previous prime is 19183820300011. The next prime is 19183820300053. The reversal of 19183820300020 is 2000302838191.

It can be written as a sum of positive squares in 2 ways, for example, as 11373338063844 + 7810482236176 = 3372438^2 + 2794724^2 .

It is a super-2 number, since 2×19183820300020² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479595507481 + ... + 479595507520.

It is an arithmetic number, because the mean of its divisors is an integer number (3357168552507).

Almost surely, 2^{19183820300020} is an apocalyptic number.

19183820300020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19183820300020 is an abundant number, since it is smaller than the sum of its proper divisors (21102202330064).

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

19183820300020 is a wasteful number, since it uses less digits than its factorization.

19183820300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959191015010 (or 959191015008 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 19183820300020 in words is "nineteen trillion, one hundred eighty-three billion, eight hundred twenty million, three hundred thousand, twenty".