999436079532 has 48 divisors (see below), whose sum is σ = 2603182361472. Its totient is φ = 295816174080.

The previous prime is 999436079531. The next prime is 999436079563. The reversal of 999436079532 is 235970634999.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (999436079531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88034853 + ... + 88046204.

It is an arithmetic number, because the mean of its divisors is an integer number (54232965864).

Almost surely, 2^999436079532 is an apocalyptic number.

It is an amenable number.

999436079532 is an abundant number, since it is smaller than the sum of its proper divisors (1603746281940).

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

999436079532 is a wasteful number, since it uses less digits than its factorization.

999436079532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176081118 (or 176081116 counting only the distinct ones).

The product of its (nonzero) digits is 99202320, while the sum is 66.

The spelling of 999436079532 in words is "nine hundred ninety-nine billion, four hundred thirty-six million, seventy-nine thousand, five hundred thirty-two".