99388424952 has 128 divisors (see below), whose sum is σ = 280395720000. Its totient is φ = 33021810432.

The previous prime is 99388424951. The next prime is 99388424959. The reversal of 99388424952 is 25942488399.

99388424952 is a `hidden beast` number, since 9 + 9 + 388 + 4 + 249 + 5 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 99388424952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99388424951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5467174 + ... + 5485322.

Almost surely, 2^99388424952 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 99388424952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140197860000).

99388424952 is an abundant number, since it is smaller than the sum of its proper divisors (181007295048).

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

99388424952 is a wasteful number, since it uses less digits than its factorization.

99388424952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18489 (or 18467 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The spelling of 99388424952 in words is "ninety-nine billion, three hundred eighty-eight million, four hundred twenty-four thousand, nine hundred fifty-two".