98854536821 has 4 divisors (see below), whose sum is σ = 104057407200. Its totient is φ = 93651666444.

The previous prime is 98854536743. The next prime is 98854536827. The reversal of 98854536821 is 12863545889.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 98854536821 - 2¹⁰ = 98854535797 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 (98854536827) 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, 2601435161 + ... + 2601435198.

It is an arithmetic number, because the mean of its divisors is an integer number (26014351800).

Almost surely, 2^98854536821 is an apocalyptic number.

It is an amenable number.

98854536821 is a deficient number, since it is larger than the sum of its proper divisors (5202870379).

98854536821 is a wasteful number, since it uses less digits than its factorization.

98854536821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5202870378.

The product of its digits is 16588800, while the sum is 59.

The spelling of 98854536821 in words is "ninety-eight billion, eight hundred fifty-four million, five hundred thirty-six thousand, eight hundred twenty-one".