19904195060 has 24 divisors (see below), whose sum is σ = 41807390856. Its totient is φ = 7960043520.

The previous prime is 19904195041. The next prime is 19904195107. The reversal of 19904195060 is 6059140991.

It can be written as a sum of positive squares in 4 ways, for example, as 5552634256 + 14351560804 = 74516^2 + 119798^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200 + ... + 199520.

It is an arithmetic number, because the mean of its divisors is an integer number (1741974619).

Almost surely, 2^19904195060 is an apocalyptic number.

19904195060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19904195060 is an abundant number, since it is smaller than the sum of its proper divisors (21903195796).

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

19904195060 is a wasteful number, since it uses less digits than its factorization.

19904195060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204323 (or 204321 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 44.

The spelling of 19904195060 in words is "nineteen billion, nine hundred four million, one hundred ninety-five thousand, sixty".