11917394017 has 2 divisors, whose sum is σ = 11917394018. Its totient is φ = 11917394016.

The previous prime is 11917393981. The next prime is 11917394059. The reversal of 11917394017 is 71049371911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10463039521 + 1454354496 = 102289^2 + 38136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11917394017 is a prime.

It is not a weakly prime, because it can be changed into another prime (11917397017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5958697008 + 5958697009.

It is an arithmetic number, because the mean of its divisors is an integer number (5958697009).

Almost surely, 2^11917394017 is an apocalyptic number.

It is an amenable number.

11917394017 is a deficient number, since it is larger than the sum of its proper divisors (1).

11917394017 is an equidigital number, since it uses as much as digits as its factorization.

11917394017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 43.

The spelling of 11917394017 in words is "eleven billion, nine hundred seventeen million, three hundred ninety-four thousand, seventeen".