19136753717 has 2 divisors, whose sum is σ = 19136753718. Its totient is φ = 19136753716.

The previous prime is 19136753689. The next prime is 19136753723. The reversal of 19136753717 is 71735763191.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14533266916 + 4603486801 = 120554^2 + 67849^2 .

It is an emirp because it is prime and its reverse (71735763191) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19136753717 is a prime.

It is a super-2 number, since 2×19136753717² (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 (19136753767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9568376858 + 9568376859.

It is an arithmetic number, because the mean of its divisors is an integer number (9568376859).

Almost surely, 2^19136753717 is an apocalyptic number.

It is an amenable number.

19136753717 is a deficient number, since it is larger than the sum of its proper divisors (1).

19136753717 is an equidigital number, since it uses as much as digits as its factorization.

19136753717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 833490, while the sum is 50.

The spelling of 19136753717 in words is "nineteen billion, one hundred thirty-six million, seven hundred fifty-three thousand, seven hundred seventeen".