999980089999 has 8 divisors (see below), whose sum is σ = 1090943613648. Its totient is φ = 909025940160.

The previous prime is 999980089973. The next prime is 999980090027.

999980089999 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999980089999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999980089699) 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, 2119462 + ... + 2547955.

It is an arithmetic number, because the mean of its divisors is an integer number (136367951706).

Almost surely, 2^999980089999 is an apocalyptic number.

999980089999 is a deficient number, since it is larger than the sum of its proper divisors (90963523649).

999980089999 is a wasteful number, since it uses less digits than its factorization.

999980089999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686905.

The product of its (nonzero) digits is 2754990144, while the sum is 88.

The spelling of 999980089999 in words is "nine hundred ninety-nine billion, nine hundred eighty million, eighty-nine thousand, nine hundred ninety-nine".