91854226768 has 20 divisors (see below), whose sum is σ = 177979604608. Its totient is φ = 45924006240.

The previous prime is 91854226729. The next prime is 91854226769. The reversal of 91854226768 is 86762245819.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91854226769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59755 + ... + 432757.

Almost surely, 2^91854226768 is an apocalyptic number.

It is an amenable number.

91854226768 is a deficient number, since it is larger than the sum of its proper divisors (86125377840).

91854226768 is a wasteful number, since it uses less digits than its factorization.

91854226768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388402 (or 388396 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 58.

The spelling of 91854226768 in words is "ninety-one billion, eight hundred fifty-four million, two hundred twenty-six thousand, seven hundred sixty-eight".