91706000507 has 4 divisors (see below), whose sum is σ = 100042909656. Its totient is φ = 83369091360.

The previous prime is 91706000497. The next prime is 91706000513. The reversal of 91706000507 is 70500060719.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70500060719 = 11 ⋅6409096429.

It is a cyclic number.

It is not a de Polignac number, because 91706000507 - 2¹⁸ = 91705738363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91706000527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4168454558 + ... + 4168454579.

It is an arithmetic number, because the mean of its divisors is an integer number (25010727414).

Almost surely, 2^91706000507 is an apocalyptic number.

91706000507 is a deficient number, since it is larger than the sum of its proper divisors (8336909149).

91706000507 is a wasteful number, since it uses less digits than its factorization.

91706000507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8336909148.

The product of its (nonzero) digits is 13230, while the sum is 35.

The spelling of 91706000507 in words is "ninety-one billion, seven hundred six million, five hundred seven", and thus it is an aban number.