9198373725 has 36 divisors (see below), whose sum is σ = 16480493172. Its totient is φ = 4904256000.

The previous prime is 9198373721. The next prime is 9198373733. The reversal of 9198373725 is 5273738919.

It can be written as a sum of positive squares in 6 ways, for example, as 1806845049 + 7391528676 = 42507^2 + 85974^2 .

It is not a de Polignac number, because 9198373725 - 2² = 9198373721 is a prime.

It is a super-2 number, since 2×9198373725² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9198373721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1288165 + ... + 1295285.

It is an arithmetic number, because the mean of its divisors is an integer number (457791477).

Almost surely, 2^9198373725 is an apocalyptic number.

It is an amenable number.

9198373725 is a deficient number, since it is larger than the sum of its proper divisors (7282119447).

9198373725 is a wasteful number, since it uses less digits than its factorization.

9198373725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12878 (or 12870 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 9198373725 is about 95908.1525471114. The cubic root of 9198373725 is about 2095.2556330293.

The spelling of 9198373725 in words is "nine billion, one hundred ninety-eight million, three hundred seventy-three thousand, seven hundred twenty-five".