11851976443 has 2 divisors, whose sum is σ = 11851976444. Its totient is φ = 11851976442.

The previous prime is 11851976321. The next prime is 11851976453. The reversal of 11851976443 is 34467915811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11851976443 - 2⁹ = 11851975931 is a prime.

It is not a weakly prime, because it can be changed into another prime (11851976453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5925988221 + 5925988222.

It is an arithmetic number, because the mean of its divisors is an integer number (5925988222).

Almost surely, 2^11851976443 is an apocalyptic number.

11851976443 is a deficient number, since it is larger than the sum of its proper divisors (1).

11851976443 is an equidigital number, since it uses as much as digits as its factorization.

11851976443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 49.

The spelling of 11851976443 in words is "eleven billion, eight hundred fifty-one million, nine hundred seventy-six thousand, four hundred forty-three".