99756048625 has 16 divisors (see below), whose sum is σ = 124526145744. Its totient is φ = 79785225600.

The previous prime is 99756048617. The next prime is 99756048629. The reversal of 99756048625 is 52684065799.

It can be written as a sum of positive squares in 8 ways, for example, as 45123530929 + 54632517696 = 212423^2 + 233736^2 .

It is not a de Polignac number, because 99756048625 - 2³ = 99756048617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99756048629) 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 15 ways as a sum of consecutive naturals, for example, 423637 + ... + 615613.

It is an arithmetic number, because the mean of its divisors is an integer number (7782884109).

Almost surely, 2^99756048625 is an apocalyptic number.

It is an amenable number.

99756048625 is a deficient number, since it is larger than the sum of its proper divisors (24770097119).

99756048625 is a wasteful number, since it uses less digits than its factorization.

99756048625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196149 (or 196139 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 99756048625 in words is "ninety-nine billion, seven hundred fifty-six million, forty-eight thousand, six hundred twenty-five".