918000000851 has 2 divisors, whose sum is σ = 918000000852. Its totient is φ = 918000000850.

The previous prime is 918000000793. The next prime is 918000000871. The reversal of 918000000851 is 158000000819.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 918000000851 - 2⁶ = 918000000787 is a prime.

It is not a weakly prime, because it can be changed into another prime (918000000871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459000000425 + 459000000426.

It is an arithmetic number, because the mean of its divisors is an integer number (459000000426).

Almost surely, 2^918000000851 is an apocalyptic number.

918000000851 is a deficient number, since it is larger than the sum of its proper divisors (1).

918000000851 is an equidigital number, since it uses as much as digits as its factorization.

918000000851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 32.

Subtracting from 918000000851 its sum of digits (32), we obtain a palindrome (918000000819).

The spelling of 918000000851 in words is "nine hundred eighteen billion, eight hundred fifty-one", and thus it is an aban number.