999243534428 has 96 divisors (see below), whose sum is σ = 1823569117440. Its totient is φ = 478820160000.

The previous prime is 999243534413. The next prime is 999243534437. The reversal of 999243534428 is 824435342999.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 950754503 + ... + 950755553.

It is an arithmetic number, because the mean of its divisors is an integer number (18995511640).

Almost surely, 2^999243534428 is an apocalyptic number.

It is an amenable number.

999243534428 is a deficient number, since it is larger than the sum of its proper divisors (824325583012).

999243534428 is a wasteful number, since it uses less digits than its factorization.

With its successor (999243534429) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1697).

With its successor (999243534429) it forms an eRAP, since the sums of their prime factors are consecutive (1699 and 1700).

999243534428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699 (or 1697 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 62.

The spelling of 999243534428 in words is "nine hundred ninety-nine billion, two hundred forty-three million, five hundred thirty-four thousand, four hundred twenty-eight".