98611611689 has 2 divisors, whose sum is σ = 98611611690. Its totient is φ = 98611611688.

The previous prime is 98611611667. The next prime is 98611611737.

98611611689 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91603075600 + 7008536089 = 302660^2 + 83717^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 98611611689 - 2⁸ = 98611611433 is a prime.

It is not a weakly prime, because it can be changed into another prime (98611611389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49305805844 + 49305805845.

It is an arithmetic number, because the mean of its divisors is an integer number (49305805845).

Almost surely, 2^98611611689 is an apocalyptic number.

It is an amenable number.

98611611689 is a deficient number, since it is larger than the sum of its proper divisors (1).

98611611689 is an equidigital number, since it uses as much as digits as its factorization.

98611611689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 56.

The spelling of 98611611689 in words is "ninety-eight billion, six hundred eleven million, six hundred eleven thousand, six hundred eighty-nine".