4278064985670 has 192 divisors, whose sum is σ = 12470708989440. Its totient is φ = 919899230208.

The previous prime is 4278064985659. The next prime is 4278064985707. The reversal of 4278064985670 is 765894608724.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 141938842 + ... + 141968978.

It is an arithmetic number, because the mean of its divisors is an integer number (64951609320).

Almost surely, 2^{4278064985670} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4278064985670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6235354494720).

4278064985670 is an abundant number, since it is smaller than the sum of its proper divisors (8192644003770).

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

4278064985670 is a wasteful number, since it uses less digits than its factorization.

4278064985670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32527 (or 32510 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 66.

The spelling of 4278064985670 in words is "four trillion, two hundred seventy-eight billion, sixty-four million, nine hundred eighty-five thousand, six hundred seventy".