19536020604 has 18 divisors (see below), whose sum is σ = 49382718840. Its totient is φ = 6512006856.

The previous prime is 19536020597. The next prime is 19536020653. The reversal of 19536020604 is 40602063591.

It is a happy number.

19536020604 is a `hidden beast` number, since 1 + 95 + 360 + 206 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×19536020604² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 542667239 = 19536020604 / (1 + 9 + 5 + 3 + 6 + 0 + 2 + 0 + 6 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 271333584 + ... + 271333655.

It is an arithmetic number, because the mean of its divisors is an integer number (2743484380).

Almost surely, 2^19536020604 is an apocalyptic number.

It is an amenable number.

19536020604 is an abundant number, since it is smaller than the sum of its proper divisors (29846698236).

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

19536020604 is a wasteful number, since it uses less digits than its factorization.

19536020604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542667249 (or 542667244 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 19536020604 in words is "nineteen billion, five hundred thirty-six million, twenty thousand, six hundred four".