91047698705 has 8 divisors (see below), whose sum is σ = 109545518400. Its totient is φ = 72645972336.

The previous prime is 91047698701. The next prime is 91047698723. The reversal of 91047698705 is 50789674019.

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 91047698705 - 2² = 91047698701 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91047698701) 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, 24021245 + ... + 24025034.

It is an arithmetic number, because the mean of its divisors is an integer number (13693189800).

Almost surely, 2^91047698705 is an apocalyptic number.

It is an amenable number.

91047698705 is a deficient number, since it is larger than the sum of its proper divisors (18497819695).

91047698705 is a wasteful number, since it uses less digits than its factorization.

91047698705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48046663.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The spelling of 91047698705 in words is "ninety-one billion, forty-seven million, six hundred ninety-eight thousand, seven hundred five".