4197195578 has 8 divisors (see below), whose sum is σ = 6512889780. Its totient is φ = 2026232320.

The previous prime is 4197195577. The next prime is 4197195593. The reversal of 4197195578 is 8755917914.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4146458449 + 50737129 = 64393^2 + 7123^2 .

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

It is not an unprimeable number, because it can be changed into a prime (4197195571) 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, 36182663 + ... + 36182778.

Almost surely, 2^4197195578 is an apocalyptic number.

4197195578 is a deficient number, since it is larger than the sum of its proper divisors (2315694202).

4197195578 is a wasteful number, since it uses less digits than its factorization.

4197195578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72365472.

The product of its digits is 3175200, while the sum is 56.

The square root of 4197195578 is about 64785.7667856143. The cubic root of 4197195578 is about 1613.0694601318.

The spelling of 4197195578 in words is "four billion, one hundred ninety-seven million, one hundred ninety-five thousand, five hundred seventy-eight".