91326190756 has 12 divisors (see below), whose sum is σ = 169222059468. Its totient is φ = 42977030912.

The previous prime is 91326190751. The next prime is 91326190759. The reversal of 91326190756 is 65709162319.

It can be written as a sum of positive squares in 2 ways, for example, as 39118510656 + 52207680100 = 197784^2 + 228490^2 .

It is not an unprimeable number, because it can be changed into a prime (91326190751) 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, 671516041 + ... + 671516176.

It is an arithmetic number, because the mean of its divisors is an integer number (14101838289).

Almost surely, 2^91326190756 is an apocalyptic number.

It is an amenable number.

91326190756 is a deficient number, since it is larger than the sum of its proper divisors (77895868712).

91326190756 is a wasteful number, since it uses less digits than its factorization.

91326190756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343032238 (or 1343032236 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 49.

The spelling of 91326190756 in words is "ninety-one billion, three hundred twenty-six million, one hundred ninety thousand, seven hundred fifty-six".