4195911820 has 12 divisors (see below), whose sum is σ = 8811414864. Its totient is φ = 1678364720.

The previous prime is 4195911817. The next prime is 4195911823. The reversal of 4195911820 is 281195914.

It is an interprime number because it is at equal distance from previous prime (4195911817) and next prime (4195911823).

It is not an unprimeable number, because it can be changed into a prime (4195911823) 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 3 ways as a sum of consecutive naturals, for example, 104897776 + ... + 104897815.

It is an arithmetic number, because the mean of its divisors is an integer number (734284572).

Almost surely, 2^4195911820 is an apocalyptic number.

It is an amenable number.

4195911820 is an abundant number, since it is smaller than the sum of its proper divisors (4615503044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4195911820 is a wasteful number, since it uses less digits than its factorization.

4195911820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209795600 (or 209795598 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 4195911820 is about 64775.8583115654. The cubic root of 4195911820 is about 1612.9049850717.

The spelling of 4195911820 in words is "four billion, one hundred ninety-five million, nine hundred eleven thousand, eight hundred twenty".