19425873343 has 2 divisors, whose sum is σ = 19425873344. Its totient is φ = 19425873342.

The previous prime is 19425873323. The next prime is 19425873367. The reversal of 19425873343 is 34337852491.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19425873343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19425873323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9712936671 + 9712936672.

It is an arithmetic number, because the mean of its divisors is an integer number (9712936672).

Almost surely, 2^19425873343 is an apocalyptic number.

19425873343 is a deficient number, since it is larger than the sum of its proper divisors (1).

19425873343 is an equidigital number, since it uses as much as digits as its factorization.

19425873343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 49.

The spelling of 19425873343 in words is "nineteen billion, four hundred twenty-five million, eight hundred seventy-three thousand, three hundred forty-three".