91359039729 has 8 divisors (see below), whose sum is σ = 121846409440. Its totient is φ = 60888848256.

The previous prime is 91359039721. The next prime is 91359039731. The reversal of 91359039729 is 92793095319.

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

It is not a de Polignac number, because 91359039729 - 2³ = 91359039721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91359039721) 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 7 ways as a sum of consecutive naturals, for example, 4282144 + ... + 4303425.

It is an arithmetic number, because the mean of its divisors is an integer number (15230801180).

Almost surely, 2^91359039729 is an apocalyptic number.

It is an amenable number.

91359039729 is a deficient number, since it is larger than the sum of its proper divisors (30487369711).

91359039729 is a wasteful number, since it uses less digits than its factorization.

91359039729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8589119.

The product of its (nonzero) digits is 4133430, while the sum is 57.

The spelling of 91359039729 in words is "ninety-one billion, three hundred fifty-nine million, thirty-nine thousand, seven hundred twenty-nine".