999452317500 has 1440 divisors, whose sum is σ = 4092052124160. Its totient is φ = 207619200000.

The previous prime is 999452317499. The next prime is 999452317511. The reversal of 999452317500 is 5713254999.

999452317500 is a `hidden beast` number, since 9 + 99 + 45 + 2 + 3 + 1 + 7 + 500 = 666.

It is a super-2 number, since 2×999452317500² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 5583532411 + ... + 5583532589.

It is an arithmetic number, because the mean of its divisors is an integer number (2841702864).

Almost surely, 2^999452317500 is an apocalyptic number.

999452317500 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999452317500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2046026062080).

999452317500 is an abundant number, since it is smaller than the sum of its proper divisors (3092599806660).

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

999452317500 is a wasteful number, since it uses less digits than its factorization.

999452317500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 54.

The spelling of 999452317500 in words is "nine hundred ninety-nine billion, four hundred fifty-two million, three hundred seventeen thousand, five hundred".