47788918020 has 36 divisors (see below), whose sum is σ = 144959718540. Its totient is φ = 12743711424.

The previous prime is 47788918019. The next prime is 47788918103. The reversal of 47788918020 is 2081988774.

It is a happy number.

47788918020 is a `hidden beast` number, since 477 + 8 + 8 + 91 + 80 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20548075716 + 27240842304 = 143346^2 + 165048^2 .

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

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 11 ways as a sum of consecutive naturals, for example, 132746815 + ... + 132747174.

Almost surely, 2^47788918020 is an apocalyptic number.

It is an amenable number.

47788918020 is an abundant number, since it is smaller than the sum of its proper divisors (97170800520).

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

47788918020 is a wasteful number, since it uses less digits than its factorization.

47788918020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265494004 (or 265493999 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The spelling of 47788918020 in words is "forty-seven billion, seven hundred eighty-eight million, nine hundred eighteen thousand, twenty".