999998074746636 has 384 divisors, whose sum is σ = 2824304552509440. Its totient is φ = 269015024793600.

The previous prime is 999998074746551. The next prime is 999998074746637. The reversal of 999998074746636 is 636647470899999.

It is a happy number.

999998074746636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×999998074746636² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (999998074746637) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 382116190800 + ... + 382116193416.

It is an arithmetic number, because the mean of its divisors is an integer number (7354959772160).

Almost surely, 2^{999998074746636} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999998074746636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1412152276254720).

999998074746636 is an abundant number, since it is smaller than the sum of its proper divisors (1824306477762804).

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

999998074746636 is a wasteful number, since it uses less digits than its factorization.

999998074746636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4925 (or 4923 counting only the distinct ones).

The product of its (nonzero) digits is 239990252544, while the sum is 96.

The spelling of 999998074746636 in words is "nine hundred ninety-nine trillion, nine hundred ninety-eight billion, seventy-four million, seven hundred forty-six thousand, six hundred thirty-six".