11850565841 has 2 divisors, whose sum is σ = 11850565842. Its totient is φ = 11850565840.

The previous prime is 11850565823. The next prime is 11850565847. The reversal of 11850565841 is 14856505811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7000836241 + 4849729600 = 83671^2 + 69640^2 .

It is a cyclic number.

It is not a de Polignac number, because 11850565841 - 2¹⁸ = 11850303697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11850565792 and 11850565801.

It is not a weakly prime, because it can be changed into another prime (11850565847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5925282920 + 5925282921.

It is an arithmetic number, because the mean of its divisors is an integer number (5925282921).

Almost surely, 2^11850565841 is an apocalyptic number.

It is an amenable number.

11850565841 is a deficient number, since it is larger than the sum of its proper divisors (1).

11850565841 is an equidigital number, since it uses as much as digits as its factorization.

11850565841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192000, while the sum is 44.

The spelling of 11850565841 in words is "eleven billion, eight hundred fifty million, five hundred sixty-five thousand, eight hundred forty-one".