213612641768 has 16 divisors (see below), whose sum is σ = 400544840160. Its totient is φ = 106800684400.

The previous prime is 213612641719. The next prime is 213612641771. The reversal of 213612641768 is 867146216312.

213612641768 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 541268 + ... + 848643.

It is an arithmetic number, because the mean of its divisors is an integer number (25034052510).

Almost surely, 2^213612641768 is an apocalyptic number.

It is an amenable number.

213612641768 is a deficient number, since it is larger than the sum of its proper divisors (186932198392).

213612641768 is a wasteful number, since it uses less digits than its factorization.

213612641768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409128 (or 1409124 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The spelling of 213612641768 in words is "two hundred thirteen billion, six hundred twelve million, six hundred forty-one thousand, seven hundred sixty-eight".