11718786683 has 4 divisors (see below), whose sum is σ = 11859976968. Its totient is φ = 11577596400.

The previous prime is 11718786661. The next prime is 11718786713. The reversal of 11718786683 is 38668781711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38668781711 = 7 ⋅5524111673.

It is a cyclic number.

It is not a de Polignac number, because 11718786683 - 2⁶ = 11718786619 is a prime.

It is a super-2 number, since 2×11718786683² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11718786383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70595018 + ... + 70595183.

It is an arithmetic number, because the mean of its divisors is an integer number (2964994242).

Almost surely, 2^11718786683 is an apocalyptic number.

11718786683 is a deficient number, since it is larger than the sum of its proper divisors (141190285).

11718786683 is an equidigital number, since it uses as much as digits as its factorization.

11718786683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141190284.

The product of its digits is 2709504, while the sum is 56.

The spelling of 11718786683 in words is "eleven billion, seven hundred eighteen million, seven hundred eighty-six thousand, six hundred eighty-three".