4278698242 has 16 divisors (see below), whose sum is σ = 7899135552. Its totient is φ = 1692671760.

The previous prime is 4278698209. The next prime is 4278698267. The reversal of 4278698242 is 2428968724.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4278698242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11754484 + ... + 11754847.

It is an arithmetic number, because the mean of its divisors is an integer number (493695972).

Almost surely, 2^4278698242 is an apocalyptic number.

4278698242 is a deficient number, since it is larger than the sum of its proper divisors (3620437310).

4278698242 is a wasteful number, since it uses less digits than its factorization.

4278698242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23509353.

The product of its digits is 3096576, while the sum is 52.

The square root of 4278698242 is about 65411.7592027611. The cubic root of 4278698242 is about 1623.4436528555.

The spelling of 4278698242 in words is "four billion, two hundred seventy-eight million, six hundred ninety-eight thousand, two hundred forty-two".