91634178113 has 8 divisors (see below), whose sum is σ = 91916040960. Its totient is φ = 91352463840.

The previous prime is 91634178029. The next prime is 91634178179. The reversal of 91634178113 is 31187143619.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91634178113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91634178613) 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, 1268381 + ... + 1338677.

It is an arithmetic number, because the mean of its divisors is an integer number (11489505120).

Almost surely, 2^91634178113 is an apocalyptic number.

It is an amenable number.

91634178113 is a deficient number, since it is larger than the sum of its proper divisors (281862847).

91634178113 is a wasteful number, since it uses less digits than its factorization.

91634178113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74287.

The product of its digits is 108864, while the sum is 44.

The spelling of 91634178113 in words is "ninety-one billion, six hundred thirty-four million, one hundred seventy-eight thousand, one hundred thirteen".