91595789465 has 16 divisors (see below), whose sum is σ = 110336557968. Its totient is φ = 72995859456.

The previous prime is 91595789381. The next prime is 91595789501. The reversal of 91595789465 is 56498759519.

It can be written as a sum of positive squares in 8 ways, for example, as 19893409936 + 71702379529 = 141044^2 + 267773^2 .

It is a cyclic number.

It is not a de Polignac number, because 91595789465 - 2¹⁰ = 91595788441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91595789395 and 91595789404.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2544029 + ... + 2579781.

It is an arithmetic number, because the mean of its divisors is an integer number (6896034873).

Almost surely, 2^91595789465 is an apocalyptic number.

It is an amenable number.

91595789465 is a deficient number, since it is larger than the sum of its proper divisors (18740768503).

91595789465 is a wasteful number, since it uses less digits than its factorization.

91595789465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37708.

The product of its digits is 122472000, while the sum is 68.

The spelling of 91595789465 in words is "ninety-one billion, five hundred ninety-five million, seven hundred eighty-nine thousand, four hundred sixty-five".