99194104691 has 4 divisors (see below), whose sum is σ = 108211750584. Its totient is φ = 90176458800.

The previous prime is 99194104621. The next prime is 99194104721. The reversal of 99194104691 is 19640149199.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99194104691 - 2³⁴ = 82014235507 is a prime.

It is a super-3 number, since 3×99194104691³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99194104621) 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, 4508822930 + ... + 4508822951.

It is an arithmetic number, because the mean of its divisors is an integer number (27052937646).

Almost surely, 2^99194104691 is an apocalyptic number.

99194104691 is a deficient number, since it is larger than the sum of its proper divisors (9017645893).

99194104691 is a wasteful number, since it uses less digits than its factorization.

99194104691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9017645892.

The product of its (nonzero) digits is 629856, while the sum is 53.

The spelling of 99194104691 in words is "ninety-nine billion, one hundred ninety-four million, one hundred four thousand, six hundred ninety-one".