19964605483 has 2 divisors, whose sum is σ = 19964605484. Its totient is φ = 19964605482.

The previous prime is 19964605391. The next prime is 19964605499. The reversal of 19964605483 is 38450646991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19964605483 - 2²¹ = 19962508331 is a prime.

It is not a weakly prime, because it can be changed into another prime (19964600483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9982302741 + 9982302742.

It is an arithmetic number, because the mean of its divisors is an integer number (9982302742).

Almost surely, 2^19964605483 is an apocalyptic number.

19964605483 is a deficient number, since it is larger than the sum of its proper divisors (1).

19964605483 is an equidigital number, since it uses as much as digits as its factorization.

19964605483 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 19964605483 in words is "nineteen billion, nine hundred sixty-four million, six hundred five thousand, four hundred eighty-three".