999998074746500 has 192 divisors, whose sum is σ = 2215968001228800. Its totient is φ = 394183603440000.

The previous prime is 999998074746491. The next prime is 999998074746521. The reversal of 999998074746500 is 5647470899999.

It is a super-2 number, since 2×999998074746500² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73577954705 + ... + 73577968295.

It is an arithmetic number, because the mean of its divisors is an integer number (11541500006400).

Almost surely, 2^{999998074746500} 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 999998074746500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1107984000614400).

999998074746500 is an abundant number, since it is smaller than the sum of its proper divisors (1215969926482300).

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

999998074746500 is a wasteful number, since it uses less digits than its factorization.

999998074746500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20827 (or 20815 counting only the distinct ones).

The product of its (nonzero) digits is 11110659840, while the sum is 86.

The spelling of 999998074746500 in words is "nine hundred ninety-nine trillion, nine hundred ninety-eight billion, seventy-four million, seven hundred forty-six thousand, five hundred".