91706000505 has 64 divisors (see below), whose sum is σ = 169646151168. Its totient is φ = 41436610560.

The previous prime is 91706000497. The next prime is 91706000513. The reversal of 91706000505 is 50500060719.

It is an interprime number because it is at equal distance from previous prime (91706000497) and next prime (91706000513).

It is not a de Polignac number, because 91706000505 - 2³ = 91706000497 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 3338025 + ... + 3365385.

It is an arithmetic number, because the mean of its divisors is an integer number (2650721112).

Almost surely, 2^91706000505 is an apocalyptic number.

It is an amenable number.

91706000505 is a deficient number, since it is larger than the sum of its proper divisors (77940150663).

91706000505 is a wasteful number, since it uses less digits than its factorization.

91706000505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27746.

The product of its (nonzero) digits is 9450, while the sum is 33.

The spelling of 91706000505 in words is "ninety-one billion, seven hundred six million, five hundred five", and thus it is an aban number.