11936268517 has 2 divisors, whose sum is σ = 11936268518. Its totient is φ = 11936268516.

The previous prime is 11936268511. The next prime is 11936268529. The reversal of 11936268517 is 71586263911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8883816516 + 3052452001 = 94254^2 + 55249^2 .

It is a cyclic number.

It is not a de Polignac number, because 11936268517 - 2⁷ = 11936268389 is a prime.

It is a super-2 number, since 2×11936268517² (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 (11936268511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5968134258 + 5968134259.

It is an arithmetic number, because the mean of its divisors is an integer number (5968134259).

Almost surely, 2^11936268517 is an apocalyptic number.

It is an amenable number.

11936268517 is a deficient number, since it is larger than the sum of its proper divisors (1).

11936268517 is an equidigital number, since it uses as much as digits as its factorization.

11936268517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The spelling of 11936268517 in words is "eleven billion, nine hundred thirty-six million, two hundred sixty-eight thousand, five hundred seventeen".