98765543209 has 8 divisors (see below), whose sum is σ = 99808829120. Its totient is φ = 97724751696.

The previous prime is 98765543179. The next prime is 98765543221. The reversal of 98765543209 is 90234556789.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 98765543209 - 2²⁵ = 98731988777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98765543509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543939 + ... + 702424.

It is an arithmetic number, because the mean of its divisors is an integer number (12476103640).

Almost surely, 2^98765543209 is an apocalyptic number.

It is an amenable number.

98765543209 is a deficient number, since it is larger than the sum of its proper divisors (1043285911).

98765543209 is a wasteful number, since it uses less digits than its factorization.

98765543209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247199.

The product of its (nonzero) digits is 16329600, while the sum is 58.

The spelling of 98765543209 in words is "ninety-eight billion, seven hundred sixty-five million, five hundred forty-three thousand, two hundred nine".