91045205704 has 16 divisors (see below), whose sum is σ = 170888903820. Its totient is φ = 45474831360.

The previous prime is 91045205683. The next prime is 91045205707. The reversal of 91045205704 is 40750254019.

It can be written as a sum of positive squares in 2 ways, for example, as 91021683204 + 23522500 = 301698^2 + 4850^2 .

It is not an unprimeable number, because it can be changed into a prime (91045205707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5963337 + ... + 5978584.

Almost surely, 2^91045205704 is an apocalyptic number.

It is an amenable number.

91045205704 is a deficient number, since it is larger than the sum of its proper divisors (79843698116).

91045205704 is a wasteful number, since it uses less digits than its factorization.

91045205704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11942880 (or 11942876 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 91045205704 in words is "ninety-one billion, forty-five million, two hundred five thousand, seven hundred four".