8111803851 has 12 divisors (see below), whose sum is σ = 11909133600. Its totient is φ = 5319215280.

The previous prime is 8111803849. The next prime is 8111803879. The reversal of 8111803851 is 1583081118.

It is a happy number.

It is not a de Polignac number, because 8111803851 - 2¹ = 8111803849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8111803811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7387251 + ... + 7388348.

It is an arithmetic number, because the mean of its divisors is an integer number (992427800).

Almost surely, 2^8111803851 is an apocalyptic number.

8111803851 is a deficient number, since it is larger than the sum of its proper divisors (3797329749).

8111803851 is a wasteful number, since it uses less digits than its factorization.

8111803851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14775666 (or 14775663 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 36.

The square root of 8111803851 is about 90065.5530766341. The cubic root of 8111803851 is about 2009.2739183353.

Adding to 8111803851 its reverse (1583081118), we get a palindrome (9694884969).

The spelling of 8111803851 in words is "eight billion, one hundred eleven million, eight hundred three thousand, eight hundred fifty-one".