212307727377 has 16 divisors (see below), whose sum is σ = 292221775872. Its totient is φ = 136966497360.

The previous prime is 212307727369. The next prime is 212307727391. The reversal of 212307727377 is 773727703212.

It is not a de Polignac number, because 212307727377 - 2³ = 212307727369 is a prime.

It is a super-2 number, since 2×212307727377² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212307727337) 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, 2903338 + ... + 2975564.

It is an arithmetic number, because the mean of its divisors is an integer number (18263860992).

Almost surely, 2^212307727377 is an apocalyptic number.

It is an amenable number.

212307727377 is a deficient number, since it is larger than the sum of its proper divisors (79914048495).

212307727377 is a wasteful number, since it uses less digits than its factorization.

212307727377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103868.

The product of its (nonzero) digits is 1210104, while the sum is 48.

The spelling of 212307727377 in words is "two hundred twelve billion, three hundred seven million, seven hundred twenty-seven thousand, three hundred seventy-seven".