4478478069 has 16 divisors (see below), whose sum is σ = 6496935872. Its totient is φ = 2727571968.

The previous prime is 4478478031. The next prime is 4478478071. The reversal of 4478478069 is 9608748744.

It is a happy number.

It is not a de Polignac number, because 4478478069 - 2⁸ = 4478477813 is a prime.

It is a super-2 number, since 2×4478478069² = 40113531629027937522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478478469) 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, 588139 + ... + 595704.

It is an arithmetic number, because the mean of its divisors is an integer number (406058492).

Almost surely, 2^4478478069 is an apocalyptic number.

It is an amenable number.

4478478069 is a deficient number, since it is larger than the sum of its proper divisors (2018457803).

4478478069 is a wasteful number, since it uses less digits than its factorization.

4478478069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183956.

The product of its (nonzero) digits is 10838016, while the sum is 57.

The square root of 4478478069 is about 66921.4320602899. The cubic root of 4478478069 is about 1648.3274228323.

The spelling of 4478478069 in words is "four billion, four hundred seventy-eight million, four hundred seventy-eight thousand, sixty-nine".