91706000513 has 2 divisors, whose sum is σ = 91706000514. Its totient is φ = 91706000512.

The previous prime is 91706000497. The next prime is 91706000527. The reversal of 91706000513 is 31500060719.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67796182129 + 23909818384 = 260377^2 + 154628^2 .

It is a cyclic number.

It is not a de Polignac number, because 91706000513 - 2⁴ = 91706000497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 91706000513.

It is not a weakly prime, because it can be changed into another prime (91706000213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45853000256 + 45853000257.

It is an arithmetic number, because the mean of its divisors is an integer number (45853000257).

Almost surely, 2^91706000513 is an apocalyptic number.

It is an amenable number.

91706000513 is a deficient number, since it is larger than the sum of its proper divisors (1).

91706000513 is an equidigital number, since it uses as much as digits as its factorization.

91706000513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 32.

The spelling of 91706000513 in words is "ninety-one billion, seven hundred six million, five hundred thirteen", and thus it is an aban number.