91264520326 has 8 divisors (see below), whose sum is σ = 156453463440. Its totient is φ = 39113365848.

The previous prime is 91264520323. The next prime is 91264520327. The reversal of 91264520326 is 62302546219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91264520323) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3259447141 + ... + 3259447168.

It is an arithmetic number, because the mean of its divisors is an integer number (19556682930).

Almost surely, 2^91264520326 is an apocalyptic number.

91264520326 is a deficient number, since it is larger than the sum of its proper divisors (65188943114).

91264520326 is a wasteful number, since it uses less digits than its factorization.

91264520326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6518894318.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 91264520326 in words is "ninety-one billion, two hundred sixty-four million, five hundred twenty thousand, three hundred twenty-six".