91464047670583 has 24 divisors (see below), whose sum is σ = 108477882762768. Its totient is φ = 76876854316416.

The previous prime is 91464047670581. The next prime is 91464047670649. The reversal of 91464047670583 is 38507674046419.

It is not a de Polignac number, because 91464047670583 - 2¹ = 91464047670581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91464047670581) 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 23 ways as a sum of consecutive naturals, for example, 73283041 + ... + 74520682.

It is an arithmetic number, because the mean of its divisors is an integer number (4519911781782).

Almost surely, 2^{91464047670583} is an apocalyptic number.

91464047670583 is a deficient number, since it is larger than the sum of its proper divisors (17013835092185).

91464047670583 is a wasteful number, since it uses less digits than its factorization.

91464047670583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147803983 (or 147803976 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 64.

The spelling of 91464047670583 in words is "ninety-one trillion, four hundred sixty-four billion, forty-seven million, six hundred seventy thousand, five hundred eighty-three".