47065721188 has 12 divisors (see below), whose sum is σ = 82478311552. Its totient is φ = 23500489320.

The previous prime is 47065721159. The next prime is 47065721189. The reversal of 47065721188 is 88112756074.

It is a super-2 number, since 2×47065721188² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47065721189) 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, 8089548 + ... + 8095363.

Almost surely, 2^47065721188 is an apocalyptic number.

It is an amenable number.

47065721188 is a deficient number, since it is larger than the sum of its proper divisors (35412590364).

47065721188 is a wasteful number, since it uses less digits than its factorization.

47065721188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16185642 (or 16185640 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 49.

The spelling of 47065721188 in words is "forty-seven billion, sixty-five million, seven hundred twenty-one thousand, one hundred eighty-eight".