19136273264441 has 2 divisors, whose sum is σ = 19136273264442. Its totient is φ = 19136273264440.

The previous prime is 19136273264411. The next prime is 19136273264447. The reversal of 19136273264441 is 14446237263191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10862429472400 + 8273843792041 = 3295820^2 + 2876429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19136273264441 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (19136273264447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9568136632220 + 9568136632221.

It is an arithmetic number, because the mean of its divisors is an integer number (9568136632221).

Almost surely, 2^{19136273264441} is an apocalyptic number.

It is an amenable number.

19136273264441 is a deficient number, since it is larger than the sum of its proper divisors (1).

19136273264441 is an equidigital number, since it uses as much as digits as its factorization.

19136273264441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 53.

The spelling of 19136273264441 in words is "nineteen trillion, one hundred thirty-six billion, two hundred seventy-three million, two hundred sixty-four thousand, four hundred forty-one".