999958594362 has 256 divisors, whose sum is σ = 2653588159488. Its totient is φ = 243716014080.

The previous prime is 999958594361. The next prime is 999958594363. The reversal of 999958594362 is 263495859999.

It is an interprime number because it is at equal distance from previous prime (999958594361) and next prime (999958594363).

It is a Harshad number since it is a multiple of its sum of digits (78).

It is not an unprimeable number, because it can be changed into a prime (999958594361) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 428613748 + ... + 428616080.

It is an arithmetic number, because the mean of its divisors is an integer number (10365578748).

Almost surely, 2^999958594362 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999958594362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1326794079744).

999958594362 is an abundant number, since it is smaller than the sum of its proper divisors (1653629565126).

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

999958594362 is a wasteful number, since it uses less digits than its factorization.

999958594362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193.

The product of its digits is 1700611200, while the sum is 78.

The spelling of 999958594362 in words is "nine hundred ninety-nine billion, nine hundred fifty-eight million, five hundred ninety-four thousand, three hundred sixty-two".