2644312012 has 6 divisors (see below), whose sum is σ = 4627546028. Its totient is φ = 1322156004.

The previous prime is 2644311977. The next prime is 2644312043. The reversal of 2644312012 is 2102134462.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330538998 + ... + 330539005.

Almost surely, 2^2644312012 is an apocalyptic number.

It is an amenable number.

2644312012 is a deficient number, since it is larger than the sum of its proper divisors (1983234016).

2644312012 is a wasteful number, since it uses less digits than its factorization.

2644312012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661078007 (or 661078005 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 2644312012 is about 51422.8744042960. The cubic root of 2644312012 is about 1382.8367070954.

Adding to 2644312012 its reverse (2102134462), we get a palindrome (4746446474).

The spelling of 2644312012 in words is "two billion, six hundred forty-four million, three hundred twelve thousand, twelve".