99471504384 has 880 divisors, whose sum is σ = 365229342720. Its totient is φ = 26336378880.

The previous prime is 99471504367. The next prime is 99471504401. The reversal of 99471504384 is 48340517499.

99471504384 is a `hidden beast` number, since 9 + 9 + 471 + 50 + 43 + 84 = 666.

It is an interprime number because it is at equal distance from previous prime (99471504367) and next prime (99471504401).

It is a super-2 number, since 2×99471504384² (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 a self number, because there is not a number n which added to its sum of digits gives 99471504384.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 783240129 + ... + 783240255.

It is an arithmetic number, because the mean of its divisors is an integer number (415033344).

Almost surely, 2^99471504384 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 99471504384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182614671360).

99471504384 is an abundant number, since it is smaller than the sum of its proper divisors (265757838336).

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

99471504384 is a wasteful number, since it uses less digits than its factorization.

99471504384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 99471504384 in words is "ninety-nine billion, four hundred seventy-one million, five hundred four thousand, three hundred eighty-four".