4278520485348 has 24 divisors (see below), whose sum is σ = 10022988235680. Its totient is φ = 1420491528000.

The previous prime is 4278520485311. The next prime is 4278520485413. The reversal of 4278520485348 is 8435840258724.

It is a happy number.

It is a super-2 number, since 2×4278520485348² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4278520485291 and 4278520485300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 710242753 + ... + 710248776.

It is an arithmetic number, because the mean of its divisors is an integer number (417624509820).

Almost surely, 2^{4278520485348} is an apocalyptic number.

It is an amenable number.

4278520485348 is an abundant number, since it is smaller than the sum of its proper divisors (5744467750332).

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

4278520485348 is a wasteful number, since it uses less digits than its factorization.

4278520485348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420491787 (or 1420491785 counting only the distinct ones).

The product of its (nonzero) digits is 68812800, while the sum is 60.

The spelling of 4278520485348 in words is "four trillion, two hundred seventy-eight billion, five hundred twenty million, four hundred eighty-five thousand, three hundred forty-eight".