91516671833774 has 8 divisors (see below), whose sum is σ = 149754553909848. Its totient is φ = 41598487197160.

The previous prime is 91516671833771. The next prime is 91516671833789. The reversal of 91516671833774 is 47733817661519.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91516671833771) 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, 2079924359837 + ... + 2079924359880.

It is an arithmetic number, because the mean of its divisors is an integer number (18719319238731).

Almost surely, 2^{91516671833774} is an apocalyptic number.

91516671833774 is a deficient number, since it is larger than the sum of its proper divisors (58237882076074).

91516671833774 is a wasteful number, since it uses less digits than its factorization.

91516671833774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4159848719730.

The product of its digits is 160030080, while the sum is 68.

The spelling of 91516671833774 in words is "ninety-one trillion, five hundred sixteen billion, six hundred seventy-one million, eight hundred thirty-three thousand, seven hundred seventy-four".