99828571500 has 960 divisors, whose sum is σ = 395897069568. Its totient is φ = 21415104000.

The previous prime is 99828571471. The next prime is 99828571529. The reversal of 99828571500 is 517582899.

99828571500 is a `hidden beast` number, since 9 + 9 + 82 + 8 + 57 + 1 + 500 = 666.

It is an interprime number because it is at equal distance from previous prime (99828571471) and next prime (99828571529).

It is a super-2 number, since 2×99828571500² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 325174347 + ... + 325174653.

Almost surely, 2^99828571500 is an apocalyptic number.

99828571500 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 99828571500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197948534784).

99828571500 is an abundant number, since it is smaller than the sum of its proper divisors (296068498068).

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

99828571500 is a wasteful number, since it uses less digits than its factorization.

99828571500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 54.

The spelling of 99828571500 in words is "ninety-nine billion, eight hundred twenty-eight million, five hundred seventy-one thousand, five hundred".