4947072845 has 128 divisors (see below), whose sum is σ = 8035614720. Its totient is φ = 2861568000.

The previous prime is 4947072797. The next prime is 4947072857. The reversal of 4947072845 is 5482707494.

It is a happy number.

It is not a de Polignac number, because 4947072845 - 2¹⁰ = 4947071821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4947072793 and 4947072802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7158950 + ... + 7159640.

It is an arithmetic number, because the mean of its divisors is an integer number (62778240).

Almost surely, 2^4947072845 is an apocalyptic number.

It is an amenable number.

4947072845 is a deficient number, since it is larger than the sum of its proper divisors (3088541875).

4947072845 is a wasteful number, since it uses less digits than its factorization.

4947072845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The square root of 4947072845 is about 70335.4309363354. The cubic root of 4947072845 is about 1703.9209203320.

The spelling of 4947072845 in words is "four billion, nine hundred forty-seven million, seventy-two thousand, eight hundred forty-five".