9990389159 has 2 divisors, whose sum is σ = 9990389160. Its totient is φ = 9990389158.

The previous prime is 9990389147. The next prime is 9990389179. The reversal of 9990389159 is 9519830999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9990389159 - 2¹² = 9990385063 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9990389119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4995194579 + 4995194580.

It is an arithmetic number, because the mean of its divisors is an integer number (4995194580).

Almost surely, 2^9990389159 is an apocalyptic number.

9990389159 is a deficient number, since it is larger than the sum of its proper divisors (1).

9990389159 is an equidigital number, since it uses as much as digits as its factorization.

9990389159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7085880, while the sum is 62.

The square root of 9990389159 is about 99951.9342434152. The cubic root of 9990389159 is about 2153.7442711594.

The spelling of 9990389159 in words is "nine billion, nine hundred ninety million, three hundred eighty-nine thousand, one hundred fifty-nine".