4478645147 has 4 divisors (see below), whose sum is σ = 4495674480. Its totient is φ = 4461615816.

The previous prime is 4478645141. The next prime is 4478645153. The reversal of 4478645147 is 7415468744.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4478645141) and next prime (4478645153).

It is a cyclic number.

It is not a de Polignac number, because 4478645147 - 2¹⁰ = 4478644123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4478645095 and 4478645104.

It is not an unprimeable number, because it can be changed into a prime (4478645141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8514272 + ... + 8514797.

It is an arithmetic number, because the mean of its divisors is an integer number (1123918620).

Almost surely, 2^4478645147 is an apocalyptic number.

4478645147 is a deficient number, since it is larger than the sum of its proper divisors (17029333).

4478645147 is a wasteful number, since it uses less digits than its factorization.

4478645147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17029332.

The product of its digits is 3010560, while the sum is 50.

The square root of 4478645147 is about 66922.6803632371. The cubic root of 4478645147 is about 1648.3479205565.

The spelling of 4478645147 in words is "four billion, four hundred seventy-eight million, six hundred forty-five thousand, one hundred forty-seven".