47115107181 has 48 divisors (see below), whose sum is σ = 73880554176. Its totient is φ = 28817607168.

The previous prime is 47115107173. The next prime is 47115107191. The reversal of 47115107181 is 18170151174.

It is a happy number.

47115107181 is a `hidden beast` number, since 4 + 71 + 1 + 510 + 71 + 8 + 1 = 666.

It is not a de Polignac number, because 47115107181 - 2³ = 47115107173 is a prime.

It is a super-2 number, since 2×47115107181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47115107141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3433971 + ... + 3447663.

It is an arithmetic number, because the mean of its divisors is an integer number (1539178212).

Almost surely, 2^47115107181 is an apocalyptic number.

It is an amenable number.

47115107181 is a deficient number, since it is larger than the sum of its proper divisors (26765446995).

47115107181 is a wasteful number, since it uses less digits than its factorization.

47115107181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14282 (or 14279 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 36.

The spelling of 47115107181 in words is "forty-seven billion, one hundred fifteen million, one hundred seven thousand, one hundred eighty-one".