4278205164 has 48 divisors (see below), whose sum is σ = 10350385920. Its totient is φ = 1373736000.

The previous prime is 4278205163. The next prime is 4278205207. The reversal of 4278205164 is 4615028724.

It is not an unprimeable number, because it can be changed into a prime (4278205163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140289 + ... + 168039.

It is an arithmetic number, because the mean of its divisors is an integer number (215633040).

Almost surely, 2^4278205164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4278205164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5175192960).

4278205164 is an abundant number, since it is smaller than the sum of its proper divisors (6072180756).

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

4278205164 is a wasteful number, since it uses less digits than its factorization.

4278205164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28230 (or 28228 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 4278205164 is about 65407.9900623769. The cubic root of 4278205164 is about 1623.3812884746.

The spelling of 4278205164 in words is "four billion, two hundred seventy-eight million, two hundred five thousand, one hundred sixty-four".