98765544444321 has 16 divisors (see below), whose sum is σ = 131858101597824. Its totient is φ = 65758348664064.

The previous prime is 98765544444311. The next prime is 98765544444337. The reversal of 98765544444321 is 12344444556789.

It is not a de Polignac number, because 98765544444321 - 2⁶ = 98765544444257 is a prime.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (98765544444311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57510921 + ... + 59203353.

It is an arithmetic number, because the mean of its divisors is an integer number (8241131349864).

Almost surely, 2^{98765544444321} is an apocalyptic number.

It is an amenable number.

98765544444321 is a deficient number, since it is larger than the sum of its proper divisors (33092557153503).

98765544444321 is a wasteful number, since it uses less digits than its factorization.

98765544444321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717640.

The product of its digits is 464486400, while the sum is 66.

The spelling of 98765544444321 in words is "ninety-eight trillion, seven hundred sixty-five billion, five hundred forty-four million, four hundred forty-four thousand, three hundred twenty-one".