11775613693 has 2 divisors, whose sum is σ = 11775613694. Its totient is φ = 11775613692.

The previous prime is 11775613657. The next prime is 11775613753. The reversal of 11775613693 is 39631657711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11629034244 + 146579449 = 107838^2 + 12107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11775613693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11775613643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5887806846 + 5887806847.

It is an arithmetic number, because the mean of its divisors is an integer number (5887806847).

Almost surely, 2^11775613693 is an apocalyptic number.

It is an amenable number.

11775613693 is a deficient number, since it is larger than the sum of its proper divisors (1).

11775613693 is an equidigital number, since it uses as much as digits as its factorization.

11775613693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 49.

The spelling of 11775613693 in words is "eleven billion, seven hundred seventy-five million, six hundred thirteen thousand, six hundred ninety-three".