331878878852 has 12 divisors (see below), whose sum is σ = 580795709340. Its totient is φ = 165937247616.

The previous prime is 331878878797. The next prime is 331878878869. The reversal of 331878878852 is 258878878133.

It can be written as a sum of positive squares in 2 ways, for example, as 5296346176 + 326582532676 = 72776^2 + 571474^2 .

It is a super-2 number, since 2×331878878852² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179777 + ... + 834312.

It is an arithmetic number, because the mean of its divisors is an integer number (48399642445).

Almost surely, 2^331878878852 is an apocalyptic number.

It is an amenable number.

331878878852 is a deficient number, since it is larger than the sum of its proper divisors (248916830488).

331878878852 is a wasteful number, since it uses less digits than its factorization.

331878878852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095910 (or 1095908 counting only the distinct ones).

The product of its digits is 144506880, while the sum is 68.

The spelling of 331878878852 in words is "three hundred thirty-one billion, eight hundred seventy-eight million, eight hundred seventy-eight thousand, eight hundred fifty-two".