98318991653 has 4 divisors (see below), whose sum is σ = 101709301740. Its totient is φ = 94928681568.

The previous prime is 98318991647. The next prime is 98318991677. The reversal of 98318991653 is 35619981389.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24404063524 + 73914928129 = 156218^2 + 271873^2 .

It is a cyclic number.

It is not a de Polignac number, because 98318991653 - 2¹⁴ = 98318975269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98318991613) 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, 1695155000 + ... + 1695155057.

It is an arithmetic number, because the mean of its divisors is an integer number (25427325435).

Almost surely, 2^98318991653 is an apocalyptic number.

It is an amenable number.

98318991653 is a deficient number, since it is larger than the sum of its proper divisors (3390310087).

98318991653 is a wasteful number, since it uses less digits than its factorization.

98318991653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390310086.

The product of its digits is 12597120, while the sum is 62.

The spelling of 98318991653 in words is "ninety-eight billion, three hundred eighteen million, nine hundred ninety-one thousand, six hundred fifty-three".