212092047746 has 4 divisors (see below), whose sum is σ = 318138071622. Its totient is φ = 106046023872.

The previous prime is 212092047743. The next prime is 212092047751. The reversal of 212092047746 is 647740290212.

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

It can be written as a sum of positive squares in only one way, i.e., 175347375025 + 36744672721 = 418745^2 + 191689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212092047697 and 212092047706.

It is not an unprimeable number, because it can be changed into a prime (212092047743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53023011935 + ... + 53023011938.

Almost surely, 2^212092047746 is an apocalyptic number.

212092047746 is a deficient number, since it is larger than the sum of its proper divisors (106046023876).

212092047746 is a wasteful number, since it uses less digits than its factorization.

212092047746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106046023875.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 212092047746 in words is "two hundred twelve billion, ninety-two million, forty-seven thousand, seven hundred forty-six".