47643945181 has 8 divisors (see below), whose sum is σ = 54451656320. Its totient is φ = 40836592368.

The previous prime is 47643945143. The next prime is 47643945241. The reversal of 47643945181 is 18154934674.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47643945181 is a prime.

It is a super-2 number, since 2×47643945181² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47643945131) 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, 320515 + ... + 444991.

It is an arithmetic number, because the mean of its divisors is an integer number (6806457040).

Almost surely, 2^47643945181 is an apocalyptic number.

It is an amenable number.

47643945181 is a deficient number, since it is larger than the sum of its proper divisors (6807711139).

47643945181 is a wasteful number, since it uses less digits than its factorization.

47643945181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179163.

The product of its digits is 2903040, while the sum is 52.

The spelling of 47643945181 in words is "forty-seven billion, six hundred forty-three million, nine hundred forty-five thousand, one hundred eighty-one".