98611605671 has 4 divisors (see below), whose sum is σ = 103801690200. Its totient is φ = 93421521144.

The previous prime is 98611605629. The next prime is 98611605739. The reversal of 98611605671 is 17650611689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17650611689 = 769 ⋅22952681.

It is a cyclic number.

It is not a de Polignac number, because 98611605671 - 2¹⁰ = 98611604647 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 (98611605571) 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, 2595042236 + ... + 2595042273.

It is an arithmetic number, because the mean of its divisors is an integer number (25950422550).

Almost surely, 2^98611605671 is an apocalyptic number.

98611605671 is a deficient number, since it is larger than the sum of its proper divisors (5190084529).

98611605671 is a wasteful number, since it uses less digits than its factorization.

98611605671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5190084528.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 98611605671 in words is "ninety-eight billion, six hundred eleven million, six hundred five thousand, six hundred seventy-one".