9654198725 has 6 divisors (see below), whose sum is σ = 11971206450. Its totient is φ = 7723358960.

The previous prime is 9654198721. The next prime is 9654198791. The reversal of 9654198725 is 5278914569.

It can be written as a sum of positive squares in 3 ways, for example, as 34316164 + 9619882561 = 5858^2 + 98081^2 .

It is not a de Polignac number, because 9654198725 - 2² = 9654198721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9654198721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 193083950 + ... + 193083999.

It is an arithmetic number, because the mean of its divisors is an integer number (1995201075).

Almost surely, 2^9654198725 is an apocalyptic number.

It is an amenable number.

9654198725 is a deficient number, since it is larger than the sum of its proper divisors (2317007725).

9654198725 is a wasteful number, since it uses less digits than its factorization.

9654198725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386167959 (or 386167954 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 56.

The square root of 9654198725 is about 98255.7821453781. The cubic root of 9654198725 is about 2129.3092696633.

The spelling of 9654198725 in words is "nine billion, six hundred fifty-four million, one hundred ninety-eight thousand, seven hundred twenty-five".