4478986043679 has 16 divisors (see below), whose sum is σ = 6825454161152. Its totient is φ = 2559295882368.

The previous prime is 4478986043677. The next prime is 4478986043729. The reversal of 4478986043679 is 9763406898744.

It is not a de Polignac number, because 4478986043679 - 2¹ = 4478986043677 is a prime.

It is a super-2 number, since 2×4478986043679² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4478986043679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478986043677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4754314 + ... + 5617959.

It is an arithmetic number, because the mean of its divisors is an integer number (426590885072).

Almost surely, 2^{4478986043679} is an apocalyptic number.

4478986043679 is a deficient number, since it is larger than the sum of its proper divisors (2346468117473).

4478986043679 is a wasteful number, since it uses less digits than its factorization.

4478986043679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10392846.

The product of its (nonzero) digits is 1755758592, while the sum is 75.

The spelling of 4478986043679 in words is "four trillion, four hundred seventy-eight billion, nine hundred eighty-six million, forty-three thousand, six hundred seventy-nine".