91740091827 has 16 divisors (see below), whose sum is σ = 123431490560. Its totient is φ = 60606360000.

The previous prime is 91740091823. The next prime is 91740091843. The reversal of 91740091827 is 72819004719.

It is not a de Polignac number, because 91740091827 - 2² = 91740091823 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91740091823) 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 15 ways as a sum of consecutive naturals, for example, 62299 + ... + 432852.

It is an arithmetic number, because the mean of its divisors is an integer number (7714468160).

Almost surely, 2^91740091827 is an apocalyptic number.

91740091827 is a deficient number, since it is larger than the sum of its proper divisors (31691398733).

91740091827 is a wasteful number, since it uses less digits than its factorization.

91740091827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495714.

The product of its (nonzero) digits is 254016, while the sum is 48.

The spelling of 91740091827 in words is "ninety-one billion, seven hundred forty million, ninety-one thousand, eight hundred twenty-seven".