8439278858052 has 96 divisors (see below), whose sum is σ = 22573154817024. Its totient is φ = 2403900374400.

The previous prime is 8439278857993. The next prime is 8439278858081. The reversal of 8439278858052 is 2508588729348.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53781027 + ... + 53937717.

It is an arithmetic number, because the mean of its divisors is an integer number (235137029344).

Almost surely, 2^{8439278858052} is an apocalyptic number.

It is an amenable number.

8439278858052 is an abundant number, since it is smaller than the sum of its proper divisors (14133875958972).

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

8439278858052 is a wasteful number, since it uses less digits than its factorization.

8439278858052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158649 (or 158647 counting only the distinct ones).

The product of its (nonzero) digits is 309657600, while the sum is 69.

The spelling of 8439278858052 in words is "eight trillion, four hundred thirty-nine billion, two hundred seventy-eight million, eight hundred fifty-eight thousand, fifty-two".