4478751971 has 4 divisors (see below), whose sum is σ = 4481308632. Its totient is φ = 4476195312.

The previous prime is 4478751941. The next prime is 4478752007. The reversal of 4478751971 is 1791578744.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4478751971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4478751931) 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, 1275701 + ... + 1279206.

It is an arithmetic number, because the mean of its divisors is an integer number (1120327158).

Almost surely, 2^4478751971 is an apocalyptic number.

4478751971 is a deficient number, since it is larger than the sum of its proper divisors (2556661).

4478751971 is a wasteful number, since it uses less digits than its factorization.

4478751971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556660.

The product of its digits is 1975680, while the sum is 53.

The square root of 4478751971 is about 66923.4784735522. The cubic root of 4478751971 is about 1648.3610258381.

The spelling of 4478751971 in words is "four billion, four hundred seventy-eight million, seven hundred fifty-one thousand, nine hundred seventy-one".