20191819282000 has 40 divisors (see below), whose sum is σ = 48823819028712. Its totient is φ = 8076727712000.

The previous prime is 20191819281967. The next prime is 20191819282039. The reversal of 20191819282000 is 28291819102.

It can be written as a sum of positive squares in 4 ways, for example, as 4005874155024 + 16185945126976 = 2001468^2 + 4023176^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5047952821 + ... + 5047956820.

Almost surely, 2^{20191819282000} is an apocalyptic number.

20191819282000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20191819282000 is an abundant number, since it is smaller than the sum of its proper divisors (28631999746712).

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

20191819282000 is a wasteful number, since it uses less digits than its factorization.

20191819282000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095909664 (or 10095909648 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 43.

The spelling of 20191819282000 in words is "twenty trillion, one hundred ninety-one billion, eight hundred nineteen million, two hundred eighty-two thousand".