10018371989 has 2 divisors, whose sum is σ = 10018371990. Its totient is φ = 10018371988.

The previous prime is 10018371977. The next prime is 10018372031. The reversal of 10018371989 is 98917381001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5524948900 + 4493423089 = 74330^2 + 67033^2 .

It is a cyclic number.

It is not a de Polignac number, because 10018371989 - 2⁸ = 10018371733 is a prime.

It is a super-2 number, since 2×10018371989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10018071989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5009185994 + 5009185995.

It is an arithmetic number, because the mean of its divisors is an integer number (5009185995).

Almost surely, 2^10018371989 is an apocalyptic number.

It is an amenable number.

10018371989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10018371989 is an equidigital number, since it uses as much as digits as its factorization.

10018371989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 47.

The spelling of 10018371989 in words is "ten billion, eighteen million, three hundred seventy-one thousand, nine hundred eighty-nine".