999999000548 has 12 divisors (see below), whose sum is σ = 1752109231740. Its totient is φ = 499396362912.

The previous prime is 999999000547. The next prime is 999999000551. The reversal of 999999000548 is 845000999999.

It can be written as a sum of positive squares in 2 ways, for example, as 755842449664 + 244156550884 = 869392^2 + 494122^2 .

It is not an unprimeable number, because it can be changed into a prime (999999000547) 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, 150780611 + ... + 150787242.

It is an arithmetic number, because the mean of its divisors is an integer number (146009102645).

Almost surely, 2^999999000548 is an apocalyptic number.

It is an amenable number.

999999000548 is a deficient number, since it is larger than the sum of its proper divisors (752110231192).

999999000548 is a wasteful number, since it uses less digits than its factorization.

999999000548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301568686 (or 301568684 counting only the distinct ones).

The product of its (nonzero) digits is 85030560, while the sum is 71.

The spelling of 999999000548 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, five hundred forty-eight", and thus it is an aban number.