2312936649 has 81 divisors (see below), whose sum is σ = 3802700629. Its totient is φ = 1354298880.

The previous prime is 2312936627. The next prime is 2312936653. The reversal of 2312936649 is 9466392132.

The square root of 2312936649 is 48093.

It is a perfect power (a square), and thus also a powerful number.

2312936649 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 162945225 + 2149991424 = 12765^2 + 46368^2 .

It is not a de Polignac number, because 2312936649 - 2⁹ = 2312936137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2312936609) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 56413069 + ... + 56413109.

Almost surely, 2^2312936649 is an apocalyptic number.

2312936649 is the 48093-rd square number.

2312936649 is the 24047-th centered octagonal number.

It is an amenable number.

2312936649 is a deficient number, since it is larger than the sum of its proper divisors (1489763980).

2312936649 is a wasteful number, since it uses less digits than its factorization.

2312936649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 84 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The cubic root of 2312936649 is about 1322.4763448825.

Multiplying 2312936649 by its product of digits (419904), we get a square (971211350661696 = 31164264²).

It can be divided in two parts, 2312 and 936649, that added together give a square (938961 = 969²).

The spelling of 2312936649 in words is "two billion, three hundred twelve million, nine hundred thirty-six thousand, six hundred forty-nine".