4394878306280 has 128 divisors (see below), whose sum is σ = 12330404686080. Its totient is φ = 1369619435520.

The previous prime is 4394878306271. The next prime is 4394878306307. The reversal of 4394878306280 is 826038784934.

It is a super-2 number, since 2×4394878306280² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20334464 + ... + 20549456.

It is an arithmetic number, because the mean of its divisors is an integer number (96331286610).

Almost surely, 2^{4394878306280} is an apocalyptic number.

4394878306280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4394878306280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6165202343040).

4394878306280 is an abundant number, since it is smaller than the sum of its proper divisors (7935526379800).

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

4394878306280 is a wasteful number, since it uses less digits than its factorization.

4394878306280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221659 (or 221655 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 62.

The spelling of 4394878306280 in words is "four trillion, three hundred ninety-four billion, eight hundred seventy-eight million, three hundred six thousand, two hundred eighty".