11685795287 has 2 divisors, whose sum is σ = 11685795288. Its totient is φ = 11685795286.

The previous prime is 11685795271. The next prime is 11685795337. The reversal of 11685795287 is 78259758611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11685795287 - 2⁴ = 11685795271 is a prime.

It is a super-2 number, since 2×11685795287² (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 (11685797287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5842897643 + 5842897644.

It is an arithmetic number, because the mean of its divisors is an integer number (5842897644).

Almost surely, 2^11685795287 is an apocalyptic number.

11685795287 is a deficient number, since it is larger than the sum of its proper divisors (1).

11685795287 is an equidigital number, since it uses as much as digits as its factorization.

11685795287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8467200, while the sum is 59.

The spelling of 11685795287 in words is "eleven billion, six hundred eighty-five million, seven hundred ninety-five thousand, two hundred eighty-seven".