91091829093 has 8 divisors (see below), whose sum is σ = 121579332288. Its totient is φ = 60666105984.

The previous prime is 91091829083. The next prime is 91091829097. The reversal of 91091829093 is 39092819019.

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

It is not a de Polignac number, because 91091829093 - 2⁸ = 91091828837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91091829097) 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 7 ways as a sum of consecutive naturals, for example, 15441580 + ... + 15447477.

It is an arithmetic number, because the mean of its divisors is an integer number (15197416536).

Almost surely, 2^91091829093 is an apocalyptic number.

It is an amenable number.

91091829093 is a deficient number, since it is larger than the sum of its proper divisors (30487503195).

91091829093 is a wasteful number, since it uses less digits than its factorization.

91091829093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30890043.

The product of its (nonzero) digits is 314928, while the sum is 51.

The spelling of 91091829093 in words is "ninety-one billion, ninety-one million, eight hundred twenty-nine thousand, ninety-three".