91368106641 has 48 divisors (see below), whose sum is σ = 151634471040. Its totient is φ = 51932482560.

The previous prime is 91368106631. The next prime is 91368106651. The reversal of 91368106641 is 14660186319.

It is an interprime number because it is at equal distance from previous prime (91368106631) and next prime (91368106651).

It is not a de Polignac number, because 91368106641 - 2¹¹ = 91368104593 is a prime.

It is a super-2 number, since 2×91368106641² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91368106601) 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 47 ways as a sum of consecutive naturals, for example, 11401326 + ... + 11409336.

It is an arithmetic number, because the mean of its divisors is an integer number (3159051480).

Almost surely, 2^91368106641 is an apocalyptic number.

It is an amenable number.

91368106641 is a deficient number, since it is larger than the sum of its proper divisors (60266364399).

91368106641 is a wasteful number, since it uses less digits than its factorization.

91368106641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8966 (or 8963 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 91368106641 in words is "ninety-one billion, three hundred sixty-eight million, one hundred six thousand, six hundred forty-one".