31776033228 has 12 divisors (see below), whose sum is σ = 74144077560. Its totient is φ = 10592011072.

The previous prime is 31776033193. The next prime is 31776033277. The reversal of 31776033228 is 82233067713.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 31776033228.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1324001373 + ... + 1324001396.

It is an arithmetic number, because the mean of its divisors is an integer number (6178673130).

Almost surely, 2^31776033228 is an apocalyptic number.

It is an amenable number.

31776033228 is an abundant number, since it is smaller than the sum of its proper divisors (42368044332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31776033228 is a wasteful number, since it uses less digits than its factorization.

31776033228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648002776 (or 2648002774 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

The spelling of 31776033228 in words is "thirty-one billion, seven hundred seventy-six million, thirty-three thousand, two hundred twenty-eight".