9999436485 has 16 divisors (see below), whose sum is σ = 16034118336. Its totient is φ = 5321359488.

The previous prime is 9999436483. The next prime is 9999436511. The reversal of 9999436485 is 5846349999.

It is a happy number.

It is not a de Polignac number, because 9999436485 - 2¹ = 9999436483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999436481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 722499 + ... + 736208.

It is an arithmetic number, because the mean of its divisors is an integer number (1002132396).

Almost surely, 2^9999436485 is an apocalyptic number.

It is an amenable number.

9999436485 is a deficient number, since it is larger than the sum of its proper divisors (6034681851).

9999436485 is a wasteful number, since it uses less digits than its factorization.

9999436485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459172.

The product of its digits is 75582720, while the sum is 66.

The square root of 9999436485 is about 99997.1823853052. The cubic root of 9999436485 is about 2154.3942207296.

The spelling of 9999436485 in words is "nine billion, nine hundred ninety-nine million, four hundred thirty-six thousand, four hundred eighty-five".