4065202878 has 48 divisors (see below), whose sum is σ = 8944750080. Its totient is φ = 1230774160.

The previous prime is 4065202847. The next prime is 4065202879. The reversal of 4065202878 is 8782025604.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4065202879) 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 23 ways as a sum of consecutive naturals, for example, 1208563 + ... + 1211921.

It is an arithmetic number, because the mean of its divisors is an integer number (186348960).

Almost surely, 2^4065202878 is an apocalyptic number.

4065202878 is an abundant number, since it is smaller than the sum of its proper divisors (4879547202).

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

4065202878 is a wasteful number, since it uses less digits than its factorization.

4065202878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5053 (or 5042 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 4065202878 is about 63758.9435138318. The cubic root of 4065202878 is about 1595.9798656074.

The spelling of 4065202878 in words is "four billion, sixty-five million, two hundred two thousand, eight hundred seventy-eight".