19554252343 has 2 divisors, whose sum is σ = 19554252344. Its totient is φ = 19554252342.

The previous prime is 19554252271. The next prime is 19554252349. The reversal of 19554252343 is 34325245591.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19554252343 - 2²⁹ = 19017381431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19554252343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19554252349) by changing a digit.

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 as a sum of consecutive naturals, namely, 9777126171 + 9777126172.

It is an arithmetic number, because the mean of its divisors is an integer number (9777126172).

Almost surely, 2^19554252343 is an apocalyptic number.

19554252343 is a deficient number, since it is larger than the sum of its proper divisors (1).

19554252343 is an equidigital number, since it uses as much as digits as its factorization.

19554252343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 43.

The spelling of 19554252343 in words is "nineteen billion, five hundred fifty-four million, two hundred fifty-two thousand, three hundred forty-three".