99408573887 has 8 divisors (see below), whose sum is σ = 113659493376. Its totient is φ = 85170078072.

The previous prime is 99408573821. The next prime is 99408573899. The reversal of 99408573887 is 78837580499.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99408573887 - 2¹⁰ = 99408572863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99408575887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3088763 + ... + 3120780.

It is an arithmetic number, because the mean of its divisors is an integer number (14207436672).

Almost surely, 2^99408573887 is an apocalyptic number.

99408573887 is a deficient number, since it is larger than the sum of its proper divisors (14250919489).

99408573887 is a wasteful number, since it uses less digits than its factorization.

99408573887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6211837.

The product of its (nonzero) digits is 121927680, while the sum is 68.

The spelling of 99408573887 in words is "ninety-nine billion, four hundred eight million, five hundred seventy-three thousand, eight hundred eighty-seven".