999998880012 has 48 divisors (see below), whose sum is σ = 2828279664000. Its totient is φ = 303029963280.

The previous prime is 999998880011. The next prime is 999998880017. The reversal of 999998880012 is 210088899999.

999998880012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (999998880011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420873762 + ... + 420876137.

It is an arithmetic number, because the mean of its divisors is an integer number (58922493000).

Almost surely, 2^999998880012 is an apocalyptic number.

It is an amenable number.

999998880012 is an abundant number, since it is smaller than the sum of its proper divisors (1828280783988).

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

999998880012 is a wasteful number, since it uses less digits than its factorization.

999998880012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841749923 (or 841749915 counting only the distinct ones).

The product of its (nonzero) digits is 60466176, while the sum is 72.

The spelling of 999998880012 in words is "nine hundred ninety-nine billion, nine hundred ninety-eight million, eight hundred eighty thousand, twelve".