91266686361 has 16 divisors (see below), whose sum is σ = 135246006720. Its totient is φ = 60828212160.

The previous prime is 91266686309. The next prime is 91266686389. The reversal of 91266686361 is 16368666219.

It is not a de Polignac number, because 91266686361 - 2²⁵ = 91233131929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91266686298 and 91266686307.

It is not an unprimeable number, because it can be changed into a prime (91266681361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347835 + ... + 550928.

It is an arithmetic number, because the mean of its divisors is an integer number (8452875420).

Almost surely, 2^91266686361 is an apocalyptic number.

It is an amenable number.

91266686361 is a deficient number, since it is larger than the sum of its proper divisors (43979320359).

91266686361 is a wasteful number, since it uses less digits than its factorization.

91266686361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902533 (or 902527 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The spelling of 91266686361 in words is "ninety-one billion, two hundred sixty-six million, six hundred eighty-six thousand, three hundred sixty-one".