98661528679 has 4 divisors (see below), whose sum is σ = 112756032784. Its totient is φ = 84567024576.

The previous prime is 98661528677. The next prime is 98661528689. The reversal of 98661528679 is 97682516689.

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 98661528679 - 2¹ = 98661528677 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 (98661528671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7047252042 + ... + 7047252055.

It is an arithmetic number, because the mean of its divisors is an integer number (28189008196).

Almost surely, 2^98661528679 is an apocalyptic number.

98661528679 is a deficient number, since it is larger than the sum of its proper divisors (14094504105).

98661528679 is a wasteful number, since it uses less digits than its factorization.

98661528679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14094504104.

The product of its digits is 78382080, while the sum is 67.

The spelling of 98661528679 in words is "ninety-eight billion, six hundred sixty-one million, five hundred twenty-eight thousand, six hundred seventy-nine".