210643205454412 has 48 divisors (see below), whose sum is σ = 400908462837120. Its totient is φ = 96435075889152.

The previous prime is 210643205454379. The next prime is 210643205454527. The reversal of 210643205454412 is 214454502346012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14923933 + ... + 25377355.

It is an arithmetic number, because the mean of its divisors is an integer number (8352259642440).

Almost surely, 2^{210643205454412} is an apocalyptic number.

It is an amenable number.

210643205454412 is a deficient number, since it is larger than the sum of its proper divisors (190265257382708).

210643205454412 is a wasteful number, since it uses less digits than its factorization.

210643205454412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10461490 (or 10461488 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 43.

The spelling of 210643205454412 in words is "two hundred ten trillion, six hundred forty-three billion, two hundred five million, four hundred fifty-four thousand, four hundred twelve".