4278278257616 has 20 divisors (see below), whose sum is σ = 9042724499424. Its totient is φ = 1944671935200.

The previous prime is 4278278257607. The next prime is 4278278257633. The reversal of 4278278257616 is 6167528728724.

4278278257616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12154199420 + ... + 12154199771.

Almost surely, 2^{4278278257616} is an apocalyptic number.

It is an amenable number.

4278278257616 is an abundant number, since it is smaller than the sum of its proper divisors (4764446241808).

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

4278278257616 is a wasteful number, since it uses less digits than its factorization.

4278278257616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24308399210 (or 24308399204 counting only the distinct ones).

The product of its digits is 126443520, while the sum is 65.

The spelling of 4278278257616 in words is "four trillion, two hundred seventy-eight billion, two hundred seventy-eight million, two hundred fifty-seven thousand, six hundred sixteen".