19828872883405 has 12 divisors (see below), whose sum is σ = 24586977038076. Its totient is φ = 15351385454400.

The previous prime is 19828872883387. The next prime is 19828872883427. The reversal of 19828872883405 is 50438827882891.

It can be written as a sum of positive squares in 2 ways, for example, as 5580867612996 + 14248005270409 = 2362386^2 + 3774653^2 .

It is not a de Polignac number, because 19828872883405 - 2⁵ = 19828872883373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2063353456 + ... + 2063363065.

It is an arithmetic number, because the mean of its divisors is an integer number (2048914753173).

Almost surely, 2^{19828872883405} is an apocalyptic number.

It is an amenable number.

19828872883405 is a deficient number, since it is larger than the sum of its proper divisors (4758104154671).

19828872883405 is an equidigital number, since it uses as much as digits as its factorization.

19828872883405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126716588 (or 4126716557 counting only the distinct ones).

The product of its (nonzero) digits is 495452160, while the sum is 73.

The spelling of 19828872883405 in words is "nineteen trillion, eight hundred twenty-eight billion, eight hundred seventy-two million, eight hundred eighty-three thousand, four hundred five".