19682792820 has 54 divisors (see below), whose sum is σ = 59710181622. Its totient is φ = 5248242816.

The previous prime is 19682792819. The next prime is 19682792851. The reversal of 19682792820 is 2829728691.

19682792820 is a `hidden beast` number, since 1 + 96 + 8 + 279 + 282 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 9989602704 + 9693190116 = 99948^2 + 98454^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1877032 + ... + 1887488.

Almost surely, 2^19682792820 is an apocalyptic number.

19682792820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19682792820 is an abundant number, since it is smaller than the sum of its proper divisors (40027388802).

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

19682792820 is an equidigital number, since it uses as much as digits as its factorization.

19682792820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20929 (or 10467 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 19682792820 in words is "nineteen billion, six hundred eighty-two million, seven hundred ninety-two thousand, eight hundred twenty".