91194106671 has 6 divisors (see below), whose sum is σ = 131724820760. Its totient is φ = 60796071108.

The previous prime is 91194106667. The next prime is 91194106693. The reversal of 91194106671 is 17660149119.

It is not a de Polignac number, because 91194106671 - 2² = 91194106667 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91194106651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5066339251 + ... + 5066339268.

Almost surely, 2^91194106671 is an apocalyptic number.

91194106671 is a deficient number, since it is larger than the sum of its proper divisors (40530714089).

91194106671 is a wasteful number, since it uses less digits than its factorization.

91194106671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10132678525 (or 10132678522 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The spelling of 91194106671 in words is "ninety-one billion, one hundred ninety-four million, one hundred six thousand, six hundred seventy-one".