4256629278 has 16 divisors (see below), whose sum is σ = 9287191296. Its totient is φ = 1289887640.

The previous prime is 4256629277. The next prime is 4256629291. The reversal of 4256629278 is 8729266524.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4256629278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256629271) 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, 32247126 + ... + 32247257.

It is an arithmetic number, because the mean of its divisors is an integer number (580449456).

Almost surely, 2^4256629278 is an apocalyptic number.

4256629278 is an abundant number, since it is smaller than the sum of its proper divisors (5030562018).

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

4256629278 is a wasteful number, since it uses less digits than its factorization.

4256629278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64494399.

The product of its digits is 2903040, while the sum is 51.

The square root of 4256629278 is about 65242.8484816535. The cubic root of 4256629278 is about 1620.6476704605.

The spelling of 4256629278 in words is "four billion, two hundred fifty-six million, six hundred twenty-nine thousand, two hundred seventy-eight".