91351491713 has 16 divisors (see below), whose sum is σ = 92646227520. Its totient is φ = 90065903616.

The previous prime is 91351491697. The next prime is 91351491739. The reversal of 91351491713 is 31719415319.

It is a cyclic number.

It is not a de Polignac number, because 91351491713 - 2⁴ = 91351491697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91351491773) 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, 25752806 + ... + 25756352.

It is an arithmetic number, because the mean of its divisors is an integer number (5790389220).

Almost surely, 2^91351491713 is an apocalyptic number.

It is an amenable number.

91351491713 is a deficient number, since it is larger than the sum of its proper divisors (1294735807).

91351491713 is a wasteful number, since it uses less digits than its factorization.

91351491713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736.

The product of its digits is 102060, while the sum is 44.

The spelling of 91351491713 in words is "ninety-one billion, three hundred fifty-one million, four hundred ninety-one thousand, seven hundred thirteen".