98217891265 has 16 divisors (see below), whose sum is σ = 129008524176. Its totient is φ = 71341113600.

The previous prime is 98217891229. The next prime is 98217891271. The reversal of 98217891265 is 56219871289.

It can be written as a sum of positive squares in 8 ways, for example, as 40694185984 + 57523705281 = 201728^2 + 239841^2 .

It is not a de Polignac number, because 98217891265 - 2⁷ = 98217891137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12381646 + ... + 12389575.

It is an arithmetic number, because the mean of its divisors is an integer number (8063032761).

Almost surely, 2^98217891265 is an apocalyptic number.

It is an amenable number.

98217891265 is a deficient number, since it is larger than the sum of its proper divisors (30790632911).

98217891265 is a wasteful number, since it uses less digits than its factorization.

98217891265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24771300.

The product of its digits is 4354560, while the sum is 58.

The spelling of 98217891265 in words is "ninety-eight billion, two hundred seventeen million, eight hundred ninety-one thousand, two hundred sixty-five".