98275643865 has 36 divisors (see below), whose sum is σ = 198155792484. Its totient is φ = 44926007616.

The previous prime is 98275643857. The next prime is 98275643867. The reversal of 98275643865 is 56834657289.

It is a happy number.

98275643865 is a `hidden beast` number, since 9 + 8 + 2 + 7 + 564 + 3 + 8 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 56670659136 + 41604984729 = 238056^2 + 203973^2 .

It is not a de Polignac number, because 98275643865 - 2³ = 98275643857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (98275643867) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22282522 + ... + 22286931.

It is an arithmetic number, because the mean of its divisors is an integer number (5504327569).

Almost surely, 2^98275643865 is an apocalyptic number.

It is an amenable number.

98275643865 is an abundant number, since it is smaller than the sum of its proper divisors (99880148619).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

98275643865 is a wasteful number, since it uses less digits than its factorization.

98275643865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44569478 (or 44569468 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 63.

The spelling of 98275643865 in words is "ninety-eight billion, two hundred seventy-five million, six hundred forty-three thousand, eight hundred sixty-five".