2612961309 has 16 divisors (see below), whose sum is σ = 4062915200. Its totient is φ = 1493120160.

The previous prime is 2612961289. The next prime is 2612961331. The reversal of 2612961309 is 9031692162.

It is not a de Polignac number, because 2612961309 - 2⁹ = 2612960797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2612961209) 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, 1268632 + ... + 1270689.

It is an arithmetic number, because the mean of its divisors is an integer number (253932200).

Almost surely, 2^2612961309 is an apocalyptic number.

It is an amenable number.

2612961309 is a deficient number, since it is larger than the sum of its proper divisors (1449953891).

2612961309 is an equidigital number, since it uses as much as digits as its factorization.

2612961309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539345 (or 2539331 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 2612961309 is about 51117.1332236071. The cubic root of 2612961309 is about 1377.3500411963.

The spelling of 2612961309 in words is "two billion, six hundred twelve million, nine hundred sixty-one thousand, three hundred nine".