9869911045 has 16 divisors (see below), whose sum is σ = 12214794240. Its totient is φ = 7651554624.

The previous prime is 9869911043. The next prime is 9869911049. The reversal of 9869911045 is 5401199689.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 9869911045 - 2¹ = 9869911043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9869910983 and 9869911001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9869911043) 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, 153430 + ... + 208039.

It is an arithmetic number, because the mean of its divisors is an integer number (763424640).

Almost surely, 2^9869911045 is an apocalyptic number.

It is an amenable number.

9869911045 is a deficient number, since it is larger than the sum of its proper divisors (2344883195).

9869911045 is a wasteful number, since it uses less digits than its factorization.

9869911045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361644.

The product of its (nonzero) digits is 699840, while the sum is 52.

The square root of 9869911045 is about 99347.4259606156. The cubic root of 9869911045 is about 2145.0516118951.

It can be divided in two parts, 986991 and 1045, that added together give a square (988036 = 994²).

The spelling of 9869911045 in words is "nine billion, eight hundred sixty-nine million, nine hundred eleven thousand, forty-five".