99445684469759 has 4 divisors (see below), whose sum is σ = 99462768427560. Its totient is φ = 99428600511960.

The previous prime is 99445684469749. The next prime is 99445684469797. The reversal of 99445684469759 is 95796448654499.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99445684469759 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 (99445684469749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8541970169 + ... + 8541981810.

It is an arithmetic number, because the mean of its divisors is an integer number (24865692106890).

Almost surely, 2^{99445684469759} is an apocalyptic number.

99445684469759 is a deficient number, since it is larger than the sum of its proper divisors (17083957801).

99445684469759 is a wasteful number, since it uses less digits than its factorization.

99445684469759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17083957800.

The product of its digits is 84652646400, while the sum is 89.

The spelling of 99445684469759 in words is "ninety-nine trillion, four hundred forty-five billion, six hundred eighty-four million, four hundred sixty-nine thousand, seven hundred fifty-nine".