2012179779 has 8 divisors (see below), whose sum is σ = 2981007120. Its totient is φ = 1341453168.

The previous prime is 2012179777. The next prime is 2012179889. The reversal of 2012179779 is 9779712102.

It is a happy number.

It is not a de Polignac number, because 2012179779 - 2¹ = 2012179777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2012179777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37262562 + ... + 37262615.

It is an arithmetic number, because the mean of its divisors is an integer number (372625890).

Almost surely, 2^2012179779 is an apocalyptic number.

2012179779 is a deficient number, since it is larger than the sum of its proper divisors (968827341).

2012179779 is an equidigital number, since it uses as much as digits as its factorization.

2012179779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74525186 (or 74525180 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 45.

The square root of 2012179779 is about 44857.3269266014. The cubic root of 2012179779 is about 1262.4734688932.

The spelling of 2012179779 in words is "two billion, twelve million, one hundred seventy-nine thousand, seven hundred seventy-nine".