11863343851 has 2 divisors, whose sum is σ = 11863343852. Its totient is φ = 11863343850.

The previous prime is 11863343839. The next prime is 11863343897. The reversal of 11863343851 is 15834336811.

It is a weak prime.

It is an emirp because it is prime and its reverse (15834336811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11863343851 - 2²³ = 11854955243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11863343798 and 11863343807.

It is not a weakly prime, because it can be changed into another prime (11863343251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5931671925 + 5931671926.

It is an arithmetic number, because the mean of its divisors is an integer number (5931671926).

Almost surely, 2^11863343851 is an apocalyptic number.

11863343851 is a deficient number, since it is larger than the sum of its proper divisors (1).

11863343851 is an equidigital number, since it uses as much as digits as its factorization.

11863343851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 43.

The spelling of 11863343851 in words is "eleven billion, eight hundred sixty-three million, three hundred forty-three thousand, eight hundred fifty-one".