215533428268 has 48 divisors (see below), whose sum is σ = 386351021056. Its totient is φ = 105179886720.

The previous prime is 215533428259. The next prime is 215533428353. The reversal of 215533428268 is 862824335512.

215533428268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80331655 + ... + 80334337.

Almost surely, 2^215533428268 is an apocalyptic number.

It is an amenable number.

215533428268 is a deficient number, since it is larger than the sum of its proper divisors (170817592788).

215533428268 is a wasteful number, since it uses less digits than its factorization.

215533428268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5534 (or 5532 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 49.

The spelling of 215533428268 in words is "two hundred fifteen billion, five hundred thirty-three million, four hundred twenty-eight thousand, two hundred sixty-eight".