19784963053 has 2 divisors, whose sum is σ = 19784963054. Its totient is φ = 19784963052.

The previous prime is 19784962999. The next prime is 19784963059. The reversal of 19784963053 is 35036948791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19332677764 + 452285289 = 139042^2 + 21267^2 .

It is a cyclic number.

It is not a de Polignac number, because 19784963053 - 2⁹ = 19784962541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19784962985 and 19784963003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19784963059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9892481526 + 9892481527.

It is an arithmetic number, because the mean of its divisors is an integer number (9892481527).

Almost surely, 2^19784963053 is an apocalyptic number.

It is an amenable number.

19784963053 is a deficient number, since it is larger than the sum of its proper divisors (1).

19784963053 is an equidigital number, since it uses as much as digits as its factorization.

19784963053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 19784963053 in words is "nineteen billion, seven hundred eighty-four million, nine hundred sixty-three thousand, fifty-three".