19941852653 has 2 divisors, whose sum is σ = 19941852654. Its totient is φ = 19941852652.

The previous prime is 19941852571. The next prime is 19941852709. The reversal of 19941852653 is 35625814991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17533202569 + 2408650084 = 132413^2 + 49078^2 .

It is a cyclic number.

It is not a de Polignac number, because 19941852653 - 2¹⁸ = 19941590509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19941852595 and 19941852604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19941852253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9970926326 + 9970926327.

It is an arithmetic number, because the mean of its divisors is an integer number (9970926327).

Almost surely, 2^19941852653 is an apocalyptic number.

It is an amenable number.

19941852653 is a deficient number, since it is larger than the sum of its proper divisors (1).

19941852653 is an equidigital number, since it uses as much as digits as its factorization.

19941852653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2332800, while the sum is 53.

The spelling of 19941852653 in words is "nineteen billion, nine hundred forty-one million, eight hundred fifty-two thousand, six hundred fifty-three".