210733668428 has 12 divisors (see below), whose sum is σ = 375034495080. Its totient is φ = 103580955552.

The previous prime is 210733668419. The next prime is 210733668443. The reversal of 210733668428 is 824866337012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446469401 + ... + 446469872.

It is an arithmetic number, because the mean of its divisors is an integer number (31252874590).

Almost surely, 2^210733668428 is an apocalyptic number.

It is an amenable number.

210733668428 is a deficient number, since it is larger than the sum of its proper divisors (164300826652).

210733668428 is a wasteful number, since it uses less digits than its factorization.

210733668428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892939336 (or 892939334 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 50.

The spelling of 210733668428 in words is "two hundred ten billion, seven hundred thirty-three million, six hundred sixty-eight thousand, four hundred twenty-eight".