91009430293 has 16 divisors (see below), whose sum is σ = 94390686720. Its totient is φ = 87644671744.

The previous prime is 91009430257. The next prime is 91009430327. The reversal of 91009430293 is 39203490019.

It is a cyclic number.

It is not a de Polignac number, because 91009430293 - 2²⁹ = 90472559381 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 (91009430693) 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 15 ways as a sum of consecutive naturals, for example, 31348680 + ... + 31351582.

It is an arithmetic number, because the mean of its divisors is an integer number (5899417920).

Almost surely, 2^91009430293 is an apocalyptic number.

It is an amenable number.

91009430293 is a deficient number, since it is larger than the sum of its proper divisors (3381256427).

91009430293 is a wasteful number, since it uses less digits than its factorization.

91009430293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348.

The product of its (nonzero) digits is 52488, while the sum is 40.

The spelling of 91009430293 in words is "ninety-one billion, nine million, four hundred thirty thousand, two hundred ninety-three".