99001743728 has 40 divisors (see below), whose sum is σ = 210102601680. Its totient is φ = 44982533120.

The previous prime is 99001743721. The next prime is 99001743733. The reversal of 99001743728 is 82734710099.

It is a super-2 number, since 2×99001743728² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99001743721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6267578 + ... + 6283353.

It is an arithmetic number, because the mean of its divisors is an integer number (5252565042).

Almost surely, 2^99001743728 is an apocalyptic number.

It is an amenable number.

99001743728 is an abundant number, since it is smaller than the sum of its proper divisors (111100857952).

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

99001743728 is a wasteful number, since it uses less digits than its factorization.

99001743728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12550985 (or 12550979 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 99001743728 in words is "ninety-nine billion, one million, seven hundred forty-three thousand, seven hundred twenty-eight".