99529887534 has 96 divisors (see below), whose sum is σ = 250482317568. Its totient is φ = 25808112000.

The previous prime is 99529887529. The next prime is 99529887547. The reversal of 99529887534 is 43578892599.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3037989 + ... + 3070575.

It is an arithmetic number, because the mean of its divisors is an integer number (2609190808).

Almost surely, 2^99529887534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99529887534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125241158784).

99529887534 is an abundant number, since it is smaller than the sum of its proper divisors (150952430034).

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

99529887534 is a wasteful number, since it uses less digits than its factorization.

99529887534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33222 (or 33211 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 69.

The spelling of 99529887534 in words is "ninety-nine billion, five hundred twenty-nine million, eight hundred eighty-seven thousand, five hundred thirty-four".