98618730389 has 4 divisors (see below), whose sum is σ = 98785035756. Its totient is φ = 98452425024.

The previous prime is 98618730337. The next prime is 98618730403. The reversal of 98618730389 is 98303781689.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28420227889 + 70198502500 = 168583^2 + 264950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98618730389 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 (98618730289) 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, 83151794 + ... + 83152979.

It is an arithmetic number, because the mean of its divisors is an integer number (24696258939).

Almost surely, 2^98618730389 is an apocalyptic number.

It is an amenable number.

98618730389 is a deficient number, since it is larger than the sum of its proper divisors (166305367).

98618730389 is a wasteful number, since it uses less digits than its factorization.

98618730389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166305366.

The product of its (nonzero) digits is 15676416, while the sum is 62.

The spelling of 98618730389 in words is "ninety-eight billion, six hundred eighteen million, seven hundred thirty thousand, three hundred eighty-nine".