12047947578831 has 8 divisors (see below), whose sum is σ = 16909400110720. Its totient is φ = 7609230049752.

The previous prime is 12047947578803. The next prime is 12047947578847. The reversal of 12047947578831 is 13887574974021.

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

It is not a de Polignac number, because 12047947578831 - 2⁷ = 12047947578703 is a prime.

It is a super-2 number, since 2×12047947578831² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12047947578431) 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, 105683750635 + ... + 105683750748.

It is an arithmetic number, because the mean of its divisors is an integer number (2113675013840).

Almost surely, 2^{12047947578831} is an apocalyptic number.

12047947578831 is a deficient number, since it is larger than the sum of its proper divisors (4861452531889).

12047947578831 is a wasteful number, since it uses less digits than its factorization.

12047947578831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211367501405.

The product of its (nonzero) digits is 94832640, while the sum is 66.

The spelling of 12047947578831 in words is "twelve trillion, forty-seven billion, nine hundred forty-seven million, five hundred seventy-eight thousand, eight hundred thirty-one".