18706371071 has 2 divisors, whose sum is σ = 18706371072. Its totient is φ = 18706371070.

The previous prime is 18706371037. The next prime is 18706371127. The reversal of 18706371071 is 17017360781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18706371071 - 2⁶ = 18706371007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18706371001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9353185535 + 9353185536.

It is an arithmetic number, because the mean of its divisors is an integer number (9353185536).

Almost surely, 2^18706371071 is an apocalyptic number.

18706371071 is a deficient number, since it is larger than the sum of its proper divisors (1).

18706371071 is an equidigital number, since it uses as much as digits as its factorization.

18706371071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 41.

The spelling of 18706371071 in words is "eighteen billion, seven hundred six million, three hundred seventy-one thousand, seventy-one".