91368617743 has 8 divisors (see below), whose sum is σ = 98427229488. Its totient is φ = 84314328384.

The previous prime is 91368617719. The next prime is 91368617783. The reversal of 91368617743 is 34771686319.

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

It is not a de Polignac number, because 91368617743 - 2¹³ = 91368609551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91368617783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036621 + ... + 1121302.

It is an arithmetic number, because the mean of its divisors is an integer number (12303403686).

Almost surely, 2^91368617743 is an apocalyptic number.

91368617743 is a deficient number, since it is larger than the sum of its proper divisors (7058611745).

91368617743 is a wasteful number, since it uses less digits than its factorization.

91368617743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161193.

The product of its digits is 4572288, while the sum is 55.

The spelling of 91368617743 in words is "ninety-one billion, three hundred sixty-eight million, six hundred seventeen thousand, seven hundred forty-three".