99443550772 has 24 divisors (see below), whose sum is σ = 174533093280. Its totient is φ = 49577041440.

The previous prime is 99443550757. The next prime is 99443550797. The reversal of 99443550772 is 27705534499.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5422843 + ... + 5441149.

It is an arithmetic number, because the mean of its divisors is an integer number (7272212220).

Almost surely, 2^99443550772 is an apocalyptic number.

It is an amenable number.

99443550772 is a deficient number, since it is larger than the sum of its proper divisors (75089542508).

99443550772 is a wasteful number, since it uses less digits than its factorization.

99443550772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22191 (or 22189 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 55.

The spelling of 99443550772 in words is "ninety-nine billion, four hundred forty-three million, five hundred fifty thousand, seven hundred seventy-two".