9999043522 has 16 divisors (see below), whose sum is σ = 16247883960. Its totient is φ = 4614941136.

The previous prime is 9999043517. The next prime is 9999043541. The reversal of 9999043522 is 2253409999.

It can be written as a sum of positive squares in 4 ways, for example, as 840362121 + 9158681401 = 28989^2 + 95701^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9999043522.

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, 1133413 + ... + 1142200.

Almost surely, 2^9999043522 is an apocalyptic number.

9999043522 is a deficient number, since it is larger than the sum of its proper divisors (6248840438).

9999043522 is a wasteful number, since it uses less digits than its factorization.

9999043522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275654 (or 2275628 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 9999043522 is about 99995.2174956383. The cubic root of 9999043522 is about 2154.3659988623.

The spelling of 9999043522 in words is "nine billion, nine hundred ninety-nine million, forty-three thousand, five hundred twenty-two".