47717472018 has 16 divisors (see below), whose sum is σ = 96379845696. Its totient is φ = 15748340400.

The previous prime is 47717472017. The next prime is 47717472037. The reversal of 47717472018 is 81027471774.

47717472018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×47717472018² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47717472017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39370246 + ... + 39371457.

It is an arithmetic number, because the mean of its divisors is an integer number (6023740356).

Almost surely, 2^47717472018 is an apocalyptic number.

47717472018 is an abundant number, since it is smaller than the sum of its proper divisors (48662373678).

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

47717472018 is a wasteful number, since it uses less digits than its factorization.

47717472018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78741809.

The product of its (nonzero) digits is 614656, while the sum is 48.

The spelling of 47717472018 in words is "forty-seven billion, seven hundred seventeen million, four hundred seventy-two thousand, eighteen".