19201132519 has 2 divisors, whose sum is σ = 19201132520. Its totient is φ = 19201132518.

The previous prime is 19201132471. The next prime is 19201132529. The reversal of 19201132519 is 91523110291.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (91523110291) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19201132519 is a prime.

It is a super-2 number, since 2×19201132519² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19201132529) 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, 9600566259 + 9600566260.

It is an arithmetic number, because the mean of its divisors is an integer number (9600566260).

Almost surely, 2^19201132519 is an apocalyptic number.

19201132519 is a deficient number, since it is larger than the sum of its proper divisors (1).

19201132519 is an equidigital number, since it uses as much as digits as its factorization.

19201132519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 34.

The spelling of 19201132519 in words is "nineteen billion, two hundred one million, one hundred thirty-two thousand, five hundred nineteen".