91335047861247 has 16 divisors (see below), whose sum is σ = 130392401447520. Its totient is φ = 56664352228352.

The previous prime is 91335047861243. The next prime is 91335047861303. The reversal of 91335047861247 is 74216874053319.

It is a cyclic number.

It is not a de Polignac number, because 91335047861247 - 2² = 91335047861243 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91335047861243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10061137548 + ... + 10061146625.

It is an arithmetic number, because the mean of its divisors is an integer number (8149525090470).

It is a 1-persistent number, because it is pandigital, but 2⋅91335047861247 = 182670095722494 is not.

Almost surely, 2^{91335047861247} is an apocalyptic number.

91335047861247 is a deficient number, since it is larger than the sum of its proper divisors (39057353586273).

91335047861247 is a wasteful number, since it uses less digits than its factorization.

91335047861247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20122284282.

The product of its (nonzero) digits is 30481920, while the sum is 60.

The spelling of 91335047861247 in words is "ninety-one trillion, three hundred thirty-five billion, forty-seven million, eight hundred sixty-one thousand, two hundred forty-seven".