99544240687 has 8 divisors (see below), whose sum is σ = 99932704256. Its totient is φ = 99156194712.

The previous prime is 99544240681. The next prime is 99544240721. The reversal of 99544240687 is 78604244599.

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 99544240687 - 2¹¹ = 99544238639 is a prime.

It is a super-3 number, since 3×99544240687³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99544240681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377608 + ... + 584530.

It is an arithmetic number, because the mean of its divisors is an integer number (12491588032).

Almost surely, 2^99544240687 is an apocalyptic number.

99544240687 is a deficient number, since it is larger than the sum of its proper divisors (388463569).

99544240687 is a wasteful number, since it uses less digits than its factorization.

99544240687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208797.

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 99544240687 in words is "ninety-nine billion, five hundred forty-four million, two hundred forty thousand, six hundred eighty-seven".