33071474778772 has 12 divisors (see below), whose sum is σ = 57879899453376. Its totient is φ = 16534360649240.

The previous prime is 33071474778751. The next prime is 33071474778791. The reversal of 33071474778772 is 27787747417033.

It is a junction number, because it is equal to n+sod(n) for n = 33071474778698 and 33071474778707.

It is a congruent number.

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, 344130988 + ... + 344227075.

It is an arithmetic number, because the mean of its divisors is an integer number (4823324954448).

Almost surely, 2^{33071474778772} is an apocalyptic number.

It is an amenable number.

33071474778772 is a deficient number, since it is larger than the sum of its proper divisors (24808424674604).

33071474778772 is a wasteful number, since it uses less digits than its factorization.

33071474778772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688370078 (or 688370076 counting only the distinct ones).

The product of its (nonzero) digits is 271063296, while the sum is 67.

The spelling of 33071474778772 in words is "thirty-three trillion, seventy-one billion, four hundred seventy-four million, seven hundred seventy-eight thousand, seven hundred seventy-two".