98195784973 has 18 divisors (see below), whose sum is σ = 116251554986. Its totient is φ = 82391628000.

The previous prime is 98195784959. The next prime is 98195784983. The reversal of 98195784973 is 37948759189.

It can be written as a sum of positive squares in 3 ways, for example, as 14131741129 + 84064043844 = 118877^2 + 289938^2 .

It is not a de Polignac number, because 98195784973 - 2⁹ = 98195784461 is a prime.

It is a super-2 number, since 2×98195784973² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98195784913) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12424323 + ... + 12432223.

Almost surely, 2^98195784973 is an apocalyptic number.

It is an amenable number.

98195784973 is a deficient number, since it is larger than the sum of its proper divisors (18055770013).

98195784973 is an frugal number, since it uses more digits than its factorization.

98195784973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15837 (or 7925 counting only the distinct ones).

The product of its digits is 137168640, while the sum is 70.

The spelling of 98195784973 in words is "ninety-eight billion, one hundred ninety-five million, seven hundred eighty-four thousand, nine hundred seventy-three".