98565449899 has 4 divisors (see below), whose sum is σ = 112646228464. Its totient is φ = 84484671336.

The previous prime is 98565449767. The next prime is 98565449977. The reversal of 98565449899 is 99894456589.

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 98565449899 - 2¹⁹ = 98564925611 is a prime.

It is a super-2 number, since 2×98565449899² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (98565449299) 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, 7040389272 + ... + 7040389285.

It is an arithmetic number, because the mean of its divisors is an integer number (28161557116).

Almost surely, 2^98565449899 is an apocalyptic number.

98565449899 is a deficient number, since it is larger than the sum of its proper divisors (14080778565).

98565449899 is a wasteful number, since it uses less digits than its factorization.

98565449899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14080778564.

The product of its digits is 1007769600, while the sum is 76.

The spelling of 98565449899 in words is "ninety-eight billion, five hundred sixty-five million, four hundred forty-nine thousand, eight hundred ninety-nine".