212162752777 has 16 divisors (see below), whose sum is σ = 219688796160. Its totient is φ = 204680120400.

The previous prime is 212162752729. The next prime is 212162752783. The reversal of 212162752777 is 777257261212.

It is a cyclic number.

It is not a de Polignac number, because 212162752777 - 2¹⁵ = 212162720009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212162752777.

It is not an unprimeable number, because it can be changed into a prime (212162752717) 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 in 15 ways as a sum of consecutive naturals, for example, 19007124 + ... + 19018282.

It is an arithmetic number, because the mean of its divisors is an integer number (13730549760).

Almost surely, 2^212162752777 is an apocalyptic number.

It is an amenable number.

212162752777 is a deficient number, since it is larger than the sum of its proper divisors (7526043383).

212162752777 is a wasteful number, since it uses less digits than its factorization.

212162752777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13044.

The product of its digits is 1152480, while the sum is 49.

The spelling of 212162752777 in words is "two hundred twelve billion, one hundred sixty-two million, seven hundred fifty-two thousand, seven hundred seventy-seven".