19373728463 has 2 divisors, whose sum is σ = 19373728464. Its totient is φ = 19373728462.

The previous prime is 19373728459. The next prime is 19373728469. The reversal of 19373728463 is 36482737391.

It is a weak prime.

It is an emirp because it is prime and its reverse (36482737391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19373728463 - 2² = 19373728459 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19373728469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9686864231 + 9686864232.

It is an arithmetic number, because the mean of its divisors is an integer number (9686864232).

Almost surely, 2^19373728463 is an apocalyptic number.

19373728463 is a deficient number, since it is larger than the sum of its proper divisors (1).

19373728463 is an equidigital number, since it uses as much as digits as its factorization.

19373728463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 53.

The spelling of 19373728463 in words is "nineteen billion, three hundred seventy-three million, seven hundred twenty-eight thousand, four hundred sixty-three".