9959889590 has 16 divisors (see below), whose sum is σ = 20488915872. Its totient is φ = 3414819264.

The previous prime is 9959889581. The next prime is 9959889613. The reversal of 9959889590 is 959889599.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71141999 + ... + 71142138.

It is an arithmetic number, because the mean of its divisors is an integer number (1280557242).

Almost surely, 2^9959889590 is an apocalyptic number.

9959889590 is an abundant number, since it is smaller than the sum of its proper divisors (10529026282).

9959889590 is a wasteful number, since it uses less digits than its factorization.

9959889590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142284151.

The product of its (nonzero) digits is 94478400, while the sum is 71.

The square root of 9959889590 is about 99799.2464400408. The cubic root of 9959889590 is about 2151.5503215229.

The spelling of 9959889590 in words is "nine billion, nine hundred fifty-nine million, eight hundred eighty-nine thousand, five hundred ninety".