99447453125 has 14 divisors (see below), whose sum is σ = 124307744778. Its totient is φ = 79557950000.

The previous prime is 99447453113. The next prime is 99447453143. The reversal of 99447453125 is 52135474499.

It can be written as a sum of positive squares in 7 ways, for example, as 98544510724 + 902942401 = 313918^2 + 30049^2 .

It is not a de Polignac number, because 99447453125 - 2¹⁰ = 99447452101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3166694 + ... + 3197943.

It is an arithmetic number, because the mean of its divisors is an integer number (8879124627).

Almost surely, 2^99447453125 is an apocalyptic number.

It is an amenable number.

99447453125 is a deficient number, since it is larger than the sum of its proper divisors (24860291653).

99447453125 is an frugal number, since it uses more digits than its factorization.

99447453125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364667 (or 6364642 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 53.

The spelling of 99447453125 in words is "ninety-nine billion, four hundred forty-seven million, four hundred fifty-three thousand, one hundred twenty-five".