47480785668 has 36 divisors (see below), whose sum is σ = 120536007228. Its totient is φ = 15758999040.

The previous prime is 47480785591. The next prime is 47480785669. The reversal of 47480785668 is 86658708474.

47480785668 is a `hidden beast` number, since 47 + 480 + 7 + 8 + 56 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30353305284 + 17127480384 = 174222^2 + 130872^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (47480785669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2821893 + ... + 2838668.

It is an arithmetic number, because the mean of its divisors is an integer number (3348222423).

Almost surely, 2^47480785668 is an apocalyptic number.

It is an amenable number.

47480785668 is an abundant number, since it is smaller than the sum of its proper divisors (73055221560).

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

47480785668 is a wasteful number, since it uses less digits than its factorization.

47480785668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5660804 (or 5660799 counting only the distinct ones).

The product of its (nonzero) digits is 72253440, while the sum is 63.

The spelling of 47480785668 in words is "forty-seven billion, four hundred eighty million, seven hundred eighty-five thousand, six hundred sixty-eight".