91909459343 has 8 divisors (see below), whose sum is σ = 99031842000. Its totient is φ = 84794565888.

The previous prime is 91909459331. The next prime is 91909459349. The reversal of 91909459343 is 34395490919.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91909459343 - 2⁸ = 91909459087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91909459349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1846793 + ... + 1895906.

It is an arithmetic number, because the mean of its divisors is an integer number (12378980250).

Almost surely, 2^91909459343 is an apocalyptic number.

91909459343 is a deficient number, since it is larger than the sum of its proper divisors (7122382657).

91909459343 is a wasteful number, since it uses less digits than its factorization.

91909459343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3744601.

The product of its (nonzero) digits is 4723920, while the sum is 56.

The spelling of 91909459343 in words is "ninety-one billion, nine hundred nine million, four hundred fifty-nine thousand, three hundred forty-three".