2644626313 has 8 divisors (see below), whose sum is σ = 3023018432. Its totient is φ = 2266381296.

The previous prime is 2644626293. The next prime is 2644626329. The reversal of 2644626313 is 3136264462.

It is a happy number.

2644626313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2644626313 - 2²¹ = 2642529161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2644626373) 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, 4906 + ... + 72892.

It is an arithmetic number, because the mean of its divisors is an integer number (377877304).

Almost surely, 2^2644626313 is an apocalyptic number.

It is an amenable number.

2644626313 is a deficient number, since it is larger than the sum of its proper divisors (378392119).

2644626313 is an equidigital number, since it uses as much as digits as its factorization.

2644626313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73551.

The product of its digits is 124416, while the sum is 37.

The square root of 2644626313 is about 51425.9303561929. The cubic root of 2644626313 is about 1382.8914925796.

The spelling of 2644626313 in words is "two billion, six hundred forty-four million, six hundred twenty-six thousand, three hundred thirteen".