91429834047 has 8 divisors (see below), whose sum is σ = 121919360256. Its totient is φ = 60946765272.

The previous prime is 91429834021. The next prime is 91429834049. The reversal of 91429834047 is 74043892419.

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

It is not a de Polignac number, because 91429834047 - 2⁸ = 91429833791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91429834049) 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, 1581223 + ... + 1638024.

It is an arithmetic number, because the mean of its divisors is an integer number (15239920032).

Almost surely, 2^91429834047 is an apocalyptic number.

91429834047 is a deficient number, since it is larger than the sum of its proper divisors (30489526209).

91429834047 is a wasteful number, since it uses less digits than its factorization.

91429834047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228717.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 91429834047 in words is "ninety-one billion, four hundred twenty-nine million, eight hundred thirty-four thousand, forty-seven".