91067689345917 has 32 divisors (see below), whose sum is σ = 134205515725824. Its totient is φ = 54684760089600.

The previous prime is 91067689345907. The next prime is 91067689345949. The reversal of 91067689345917 is 71954398676019.

It is not a de Polignac number, because 91067689345917 - 2⁴ = 91067689345901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91067689345907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 395463309 + ... + 395693522.

It is an arithmetic number, because the mean of its divisors is an integer number (4193922366432).

Almost surely, 2^{91067689345917} is an apocalyptic number.

It is an amenable number.

91067689345917 is a deficient number, since it is larger than the sum of its proper divisors (43137826379907).

91067689345917 is a wasteful number, since it uses less digits than its factorization.

91067689345917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791156949.

The product of its (nonzero) digits is 617258880, while the sum is 75.

The spelling of 91067689345917 in words is "ninety-one trillion, sixty-seven billion, six hundred eighty-nine million, three hundred forty-five thousand, nine hundred seventeen".