999999273000000 has 784 divisors, whose sum is σ = 4070458869959552. Its totient is φ = 210988800000000.

The previous prime is 999999272999999. The next prime is 999999273000073. The reversal of 999999273000000 is 372999999.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 271168500 + ... + 274831500.

It is an arithmetic number, because the mean of its divisors is an integer number (5191911823928).

Almost surely, 2^{999999273000000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999999273000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2035229434979776).

999999273000000 is an abundant number, since it is smaller than the sum of its proper divisors (3070459596959552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999999273000000 is an equidigital number, since it uses as much as digits as its factorization.

999999273000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663066 (or 3663031 counting only the distinct ones).

The product of its (nonzero) digits is 22320522, while the sum is 66.

The spelling of 999999273000000 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, two hundred seventy-three million", and thus it is an aban number.