4278538257246 has 96 divisors (see below), whose sum is σ = 10849097750400. Its totient is φ = 1251818880480.

The previous prime is 4278538257239. The next prime is 4278538257283. The reversal of 4278538257246 is 6427528358724.

It is a happy number.

4278538257246 is a `hidden beast` number, since 4 + 2 + 7 + 8 + 5 + 382 + 5 + 7 + 246 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13643676 + ... + 13953743.

It is an arithmetic number, because the mean of its divisors is an integer number (113011434900).

Almost surely, 2^{4278538257246} is an apocalyptic number.

4278538257246 is an abundant number, since it is smaller than the sum of its proper divisors (6570559493154).

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

4278538257246 is a wasteful number, since it uses less digits than its factorization.

4278538257246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27597476 (or 27597464 counting only the distinct ones).

The product of its digits is 180633600, while the sum is 63.

The spelling of 4278538257246 in words is "four trillion, two hundred seventy-eight billion, five hundred thirty-eight million, two hundred fifty-seven thousand, two hundred forty-six".