212286956543 has 4 divisors (see below), whose sum is σ = 212355241080. Its totient is φ = 212218672008.

The previous prime is 212286956537. The next prime is 212286956551. The reversal of 212286956543 is 345659682212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212286956543 - 2¹⁶ = 212286891007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212286956533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34137605 + ... + 34143822.

It is an arithmetic number, because the mean of its divisors is an integer number (53088810270).

Almost surely, 2^212286956543 is an apocalyptic number.

212286956543 is a deficient number, since it is larger than the sum of its proper divisors (68284537).

212286956543 is an equidigital number, since it uses as much as digits as its factorization.

212286956543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68284536.

The product of its digits is 6220800, while the sum is 53.

The spelling of 212286956543 in words is "two hundred twelve billion, two hundred eighty-six million, nine hundred fifty-six thousand, five hundred forty-three".