4479947856 has 30 divisors (see below), whose sum is σ = 12537632250. Its totient is φ = 1493315904.

The previous prime is 4479947837. The next prime is 4479947863. The reversal of 4479947856 is 6587499744.

4479947856 is a `hidden beast` number, since 4 + 479 + 94 + 78 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4467585600 + 12362256 = 66840^2 + 3516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4479947793 and 4479947802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15555231 + ... + 15555518.

It is an arithmetic number, because the mean of its divisors is an integer number (417921075).

Almost surely, 2^4479947856 is an apocalyptic number.

It is an amenable number.

4479947856 is an abundant number, since it is smaller than the sum of its proper divisors (8057684394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4479947856 is a wasteful number, since it uses less digits than its factorization.

4479947856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31110763 (or 31110754 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The square root of 4479947856 is about 66932.4125965888. The cubic root of 4479947856 is about 1648.5077240563.

The spelling of 4479947856 in words is "four billion, four hundred seventy-nine million, nine hundred forty-seven thousand, eight hundred fifty-six".