999999000045 has 24 divisors (see below), whose sum is σ = 1733511436800. Its totient is φ = 533277465696.

The previous prime is 999999000001. The next prime is 999999000053. The reversal of 999999000045 is 540000999999.

It is not a de Polignac number, because 999999000045 - 2¹² = 999998995949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 712405 + ... + 1583514.

It is an arithmetic number, because the mean of its divisors is an integer number (72229643200).

Almost surely, 2^999999000045 is an apocalyptic number.

It is an amenable number.

999999000045 is a deficient number, since it is larger than the sum of its proper divisors (733512436755).

999999000045 is a wasteful number, since it uses less digits than its factorization.

999999000045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305609 (or 2305606 counting only the distinct ones).

The product of its (nonzero) digits is 10628820, while the sum is 63.

The spelling of 999999000045 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, forty-five", and thus it is an aban number.