4947517808 has 20 divisors (see below), whose sum is σ = 9589681608. Its totient is φ = 2472761280.

The previous prime is 4947517807. The next prime is 4947517823. The reversal of 4947517808 is 8087157494.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4947517808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4947517807) 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, 20591 + ... + 101582.

Almost surely, 2^4947517808 is an apocalyptic number.

It is an amenable number.

4947517808 is a deficient number, since it is larger than the sum of its proper divisors (4642163800).

4947517808 is a wasteful number, since it uses less digits than its factorization.

4947517808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124712 (or 124706 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 53.

The square root of 4947517808 is about 70338.5940149503. The cubic root of 4947517808 is about 1703.9720050211.

The spelling of 4947517808 in words is "four billion, nine hundred forty-seven million, five hundred seventeen thousand, eight hundred eight".