4278538257247 has 8 divisors (see below), whose sum is σ = 4608579778560. Its totient is φ = 3960498245880.

The previous prime is 4278538257239. The next prime is 4278538257283. The reversal of 4278538257247 is 7427528358724.

4278538257247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4278538257247 - 2³ = 4278538257239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4278538257647) 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, 3000376747 + ... + 3000378172.

It is an arithmetic number, because the mean of its divisors is an integer number (576072472320).

Almost surely, 2^{4278538257247} is an apocalyptic number.

4278538257247 is a deficient number, since it is larger than the sum of its proper divisors (330041521313).

4278538257247 is a wasteful number, since it uses less digits than its factorization.

4278538257247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000754973.

The product of its digits is 210739200, while the sum is 64.

The spelling of 4278538257247 in words is "four trillion, two hundred seventy-eight billion, five hundred thirty-eight million, two hundred fifty-seven thousand, two hundred forty-seven".