212766345775 has 12 divisors (see below), whose sum is σ = 277716073000. Its totient is φ = 161254493280.

The previous prime is 212766345763. The next prime is 212766345833. The reversal of 212766345775 is 577543667212.

It is not a de Polignac number, because 212766345775 - 2¹⁹ = 212765821487 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223964100 + ... + 223965049.

Almost surely, 2^212766345775 is an apocalyptic number.

212766345775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

212766345775 is a deficient number, since it is larger than the sum of its proper divisors (64949727225).

212766345775 is a wasteful number, since it uses less digits than its factorization.

212766345775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447929178 (or 447929173 counting only the distinct ones).

The product of its digits is 14817600, while the sum is 55.

The spelling of 212766345775 in words is "two hundred twelve billion, seven hundred sixty-six million, three hundred forty-five thousand, seven hundred seventy-five".