91198562822541 has 8 divisors (see below), whose sum is σ = 135108981959360. Its totient is φ = 60799041881676.

The previous prime is 91198562822459. The next prime is 91198562822557. The reversal of 91198562822541 is 14522826589119.

91198562822541 is a `hidden beast` number, since 9 + 1 + 1 + 9 + 8 + 5 + 6 + 2 + 82 + 2 + 541 = 666.

It is not a de Polignac number, because 91198562822541 - 2¹¹ = 91198562820493 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 (91198562922541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1688862274465 + ... + 1688862274518.

It is an arithmetic number, because the mean of its divisors is an integer number (16888622744920).

Almost surely, 2^{91198562822541} is an apocalyptic number.

It is an amenable number.

91198562822541 is a deficient number, since it is larger than the sum of its proper divisors (43910419136819).

91198562822541 is a wasteful number, since it uses less digits than its factorization.

91198562822541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377724548992 (or 3377724548986 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 63.

The spelling of 91198562822541 in words is "ninety-one trillion, one hundred ninety-eight billion, five hundred sixty-two million, eight hundred twenty-two thousand, five hundred forty-one".