98688099845 has 4 divisors (see below), whose sum is σ = 118425719820. Its totient is φ = 78950479872.

The previous prime is 98688099841. The next prime is 98688099863. The reversal of 98688099845 is 54899088689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54899088689 = 37123 ⋅1478843.

It can be written as a sum of positive squares in 2 ways, for example, as 15005760004 + 83682339841 = 122498^2 + 289279^2 .

It is a cyclic number.

It is not a de Polignac number, because 98688099845 - 2² = 98688099841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98688099841) 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, 9868809980 + ... + 9868809989.

It is an arithmetic number, because the mean of its divisors is an integer number (29606429955).

Almost surely, 2^98688099845 is an apocalyptic number.

It is an amenable number.

98688099845 is a deficient number, since it is larger than the sum of its proper divisors (19737619975).

98688099845 is a wasteful number, since it uses less digits than its factorization.

98688099845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19737619974.

The product of its (nonzero) digits is 358318080, while the sum is 74.

The spelling of 98688099845 in words is "ninety-eight billion, six hundred eighty-eight million, ninety-nine thousand, eight hundred forty-five".