4198146985 has 8 divisors (see below), whose sum is σ = 5042245320. Its totient is φ = 3355538304.

The previous prime is 4198146983. The next prime is 4198147043. The reversal of 4198146985 is 5896418914.

It can be written as a sum of positive squares in 4 ways, for example, as 36348841 + 4161798144 = 6029^2 + 64512^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4198146985 - 2¹ = 4198146983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4198146983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366202 + ... + 377491.

It is an arithmetic number, because the mean of its divisors is an integer number (630280665).

Almost surely, 2^4198146985 is an apocalyptic number.

It is an amenable number.

4198146985 is a deficient number, since it is larger than the sum of its proper divisors (844098335).

4198146985 is a wasteful number, since it uses less digits than its factorization.

4198146985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744827.

The product of its digits is 2488320, while the sum is 55.

The square root of 4198146985 is about 64793.1090857662. The cubic root of 4198146985 is about 1613.1913327491.

The spelling of 4198146985 in words is "four billion, one hundred ninety-eight million, one hundred forty-six thousand, nine hundred eighty-five".