91706000625 has 120 divisors (see below), whose sum is σ = 176207751720. Its totient is φ = 45785088000.

The previous prime is 91706000623. The next prime is 91706000651. The reversal of 91706000625 is 52600060719.

It can be written as a sum of positive squares in 20 ways, for example, as 91569180816 + 136819809 = 302604^2 + 11697^2 .

It is not a de Polignac number, because 91706000625 - 2¹ = 91706000623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91706000625.

It is not an unprimeable number, because it can be changed into a prime (91706000623) by changing a digit.

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 119 ways as a sum of consecutive naturals, for example, 18453141 + ... + 18458109.

It is an arithmetic number, because the mean of its divisors is an integer number (1468397931).

Almost surely, 2^91706000625 is an apocalyptic number.

It is an amenable number.

91706000625 is a deficient number, since it is larger than the sum of its proper divisors (84501751095).

91706000625 is a wasteful number, since it uses less digits than its factorization.

With its successor (91706000626) it forms an eRAP, since the sums of their prime factors are consecutive (5205 and 5206).

91706000625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5205 (or 5187 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 91706000625 in words is "ninety-one billion, seven hundred six million, six hundred twenty-five", and thus it is an aban number.