47985162818 has 8 divisors (see below), whose sum is σ = 74299607040. Its totient is φ = 23218627140.

The previous prime is 47985162811. The next prime is 47985162833. The reversal of 47985162818 is 81826158974.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×47985162818² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47985162811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386977058 + ... + 386977181.

It is an arithmetic number, because the mean of its divisors is an integer number (9287450880).

Almost surely, 2^47985162818 is an apocalyptic number.

47985162818 is a deficient number, since it is larger than the sum of its proper divisors (26314444222).

47985162818 is a wasteful number, since it uses less digits than its factorization.

47985162818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773954272.

The product of its digits is 7741440, while the sum is 59.

The spelling of 47985162818 in words is "forty-seven billion, nine hundred eighty-five million, one hundred sixty-two thousand, eight hundred eighteen".