990013295809 has 8 divisors (see below), whose sum is σ = 1002960092160. Its totient is φ = 977076874176.

The previous prime is 990013295807. The next prime is 990013295849. The reversal of 990013295809 is 908592310099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 990013295809 - 2¹ = 990013295807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 990013295809.

It is not an unprimeable number, because it can be changed into a prime (990013295807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2401489 + ... + 2783374.

It is an arithmetic number, because the mean of its divisors is an integer number (125370011520).

Almost surely, 2^990013295809 is an apocalyptic number.

It is an amenable number.

990013295809 is a deficient number, since it is larger than the sum of its proper divisors (12946796351).

990013295809 is a wasteful number, since it uses less digits than its factorization.

990013295809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5187359.

The product of its (nonzero) digits is 1574640, while the sum is 55.

The spelling of 990013295809 in words is "nine hundred ninety billion, thirteen million, two hundred ninety-five thousand, eight hundred nine".