98668704191 has 4 divisors (see below), whose sum is σ = 104472745632. Its totient is φ = 92864662752.

The previous prime is 98668704109. The next prime is 98668704193. The reversal of 98668704191 is 19140786689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19140786689 = 349 ⋅54844661.

It is a cyclic number.

It is not a de Polignac number, because 98668704191 - 2¹⁰ = 98668703167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 98668704191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98668704193) 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, 2902020695 + ... + 2902020728.

It is an arithmetic number, because the mean of its divisors is an integer number (26118186408).

Almost surely, 2^98668704191 is an apocalyptic number.

98668704191 is a deficient number, since it is larger than the sum of its proper divisors (5804041441).

98668704191 is a wasteful number, since it uses less digits than its factorization.

98668704191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804041440.

The product of its (nonzero) digits is 5225472, while the sum is 59.

The spelling of 98668704191 in words is "ninety-eight billion, six hundred sixty-eight million, seven hundred four thousand, one hundred ninety-one".