91044987334318 has 16 divisors (see below), whose sum is σ = 144602974838304. Its totient is φ = 42844073966080.

The previous prime is 91044987334303. The next prime is 91044987334337. The reversal of 91044987334318 is 81343378944019.

It is a super-2 number, since 2×91044987334318² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91044987334318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17195563 + ... + 21858118.

It is an arithmetic number, because the mean of its divisors is an integer number (9037685927394).

Almost surely, 2^{91044987334318} is an apocalyptic number.

91044987334318 is a deficient number, since it is larger than the sum of its proper divisors (53557987503986).

91044987334318 is a wasteful number, since it uses less digits than its factorization.

91044987334318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39122267.

The product of its (nonzero) digits is 62705664, while the sum is 64.

The spelling of 91044987334318 in words is "ninety-one trillion, forty-four billion, nine hundred eighty-seven million, three hundred thirty-four thousand, three hundred eighteen".