11850856163 has 2 divisors, whose sum is σ = 11850856164. Its totient is φ = 11850856162.

The previous prime is 11850856153. The next prime is 11850856183. The reversal of 11850856163 is 36165805811.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (36165805811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11850856163 - 2¹² = 11850852067 is a prime.

It is a super-2 number, since 2×11850856163² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11850856153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5925428081 + 5925428082.

It is an arithmetic number, because the mean of its divisors is an integer number (5925428082).

Almost surely, 2^11850856163 is an apocalyptic number.

11850856163 is a deficient number, since it is larger than the sum of its proper divisors (1).

11850856163 is an equidigital number, since it uses as much as digits as its factorization.

11850856163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 44.

The spelling of 11850856163 in words is "eleven billion, eight hundred fifty million, eight hundred fifty-six thousand, one hundred sixty-three".