19820893124 has 12 divisors (see below), whose sum is σ = 34939750524. Its totient is φ = 9838107264.

The previous prime is 19820893123. The next prime is 19820893193. The reversal of 19820893124 is 42139802891.

It can be written as a sum of positive squares in 2 ways, for example, as 11942555524 + 7878337600 = 109282^2 + 88760^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19820893121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18084209 + ... + 18085304.

It is an arithmetic number, because the mean of its divisors is an integer number (2911645877).

Almost surely, 2^19820893124 is an apocalyptic number.

It is an amenable number.

19820893124 is a deficient number, since it is larger than the sum of its proper divisors (15118857400).

19820893124 is a wasteful number, since it uses less digits than its factorization.

19820893124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36169654 (or 36169652 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 19820893124 in words is "nineteen billion, eight hundred twenty million, eight hundred ninety-three thousand, one hundred twenty-four".