1009999089793 has 4 divisors (see below), whose sum is σ = 1011226307008. Its totient is φ = 1008771872580.

The previous prime is 1009999089787. The next prime is 1009999089797. The reversal of 1009999089793 is 3979809999001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1009999089793 - 2²⁵ = 1009965535361 is a prime.

It is a super-2 number, since 2×1009999089793² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1009999089797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613607373 + ... + 613609018.

It is an arithmetic number, because the mean of its divisors is an integer number (252806576752).

Almost surely, 2^{1009999089793} is an apocalyptic number.

It is an amenable number.

1009999089793 is a deficient number, since it is larger than the sum of its proper divisors (1227217215).

1009999089793 is an equidigital number, since it uses as much as digits as its factorization.

1009999089793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227217214.

The product of its (nonzero) digits is 89282088, while the sum is 73.

The spelling of 1009999089793 in words is "one trillion, nine billion, nine hundred ninety-nine million, eighty-nine thousand, seven hundred ninety-three".