9905539490 has 64 divisors (see below), whose sum is σ = 23196119040. Its totient is φ = 2953199040.

The previous prime is 9905539487. The next prime is 9905539493. The reversal of 9905539490 is 949355099.

It is an interprime number because it is at equal distance from previous prime (9905539487) and next prime (9905539493).

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (9905539493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261950 + ... + 297369.

It is an arithmetic number, because the mean of its divisors is an integer number (362439360).

Almost surely, 2^9905539490 is an apocalyptic number.

9905539490 is an abundant number, since it is smaller than the sum of its proper divisors (13290579550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9905539490 is a wasteful number, since it uses less digits than its factorization.

9905539490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559367.

The product of its (nonzero) digits is 1968300, while the sum is 53.

The square root of 9905539490 is about 99526.5768023798. The cubic root of 9905539490 is about 2147.6295843956.

The spelling of 9905539490 in words is "nine billion, nine hundred five million, five hundred thirty-nine thousand, four hundred ninety".