99724523808 has 192 divisors, whose sum is σ = 322478392320. Its totient is φ = 26277184512.

The previous prime is 99724523797. The next prime is 99724523809. The reversal of 99724523808 is 80832542799.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (99724523809) 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, 10994091 + ... + 11003157.

It is an arithmetic number, because the mean of its divisors is an integer number (1679574960).

Almost surely, 2^99724523808 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 99724523808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161239196160).

99724523808 is an abundant number, since it is smaller than the sum of its proper divisors (222753868512).

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

99724523808 is a wasteful number, since it uses less digits than its factorization.

99724523808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10359 (or 10351 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 99724523808 in words is "ninety-nine billion, seven hundred twenty-four million, five hundred twenty-three thousand, eight hundred eight".