91355632194 has 32 divisors (see below), whose sum is σ = 184935104640. Its totient is φ = 30082897152.

The previous prime is 91355632157. The next prime is 91355632201. The reversal of 91355632194 is 49123655319.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13147 + ... + 427649.

It is an arithmetic number, because the mean of its divisors is an integer number (5779222020).

Almost surely, 2^91355632194 is an apocalyptic number.

91355632194 is an abundant number, since it is smaller than the sum of its proper divisors (93579472446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91355632194 is a wasteful number, since it uses less digits than its factorization.

91355632194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414954.

The product of its digits is 874800, while the sum is 48.

The spelling of 91355632194 in words is "ninety-one billion, three hundred fifty-five million, six hundred thirty-two thousand, one hundred ninety-four".