98199344891 has 4 divisors (see below), whose sum is σ = 98631941352. Its totient is φ = 97766748432.

The previous prime is 98199344851. The next prime is 98199344897. The reversal of 98199344891 is 19844399189.

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 98199344891 - 2³⁰ = 97125603067 is a prime.

It is a super-2 number, since 2×98199344891² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98199344897) 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, 216297890 + ... + 216298343.

It is an arithmetic number, because the mean of its divisors is an integer number (24657985338).

Almost surely, 2^98199344891 is an apocalyptic number.

98199344891 is a deficient number, since it is larger than the sum of its proper divisors (432596461).

98199344891 is a wasteful number, since it uses less digits than its factorization.

98199344891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432596460.

The product of its digits is 20155392, while the sum is 65.

The spelling of 98199344891 in words is "ninety-eight billion, one hundred ninety-nine million, three hundred forty-four thousand, eight hundred ninety-one".