2643672613 has 4 divisors (see below), whose sum is σ = 2656957600. Its totient is φ = 2630387628.

The previous prime is 2643672599. The next prime is 2643672623. The reversal of 2643672613 is 3162763462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2643672613 - 2¹⁷ = 2643541541 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 (2643672623) 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 3 ways as a sum of consecutive naturals, for example, 6642195 + ... + 6642592.

It is an arithmetic number, because the mean of its divisors is an integer number (664239400).

Almost surely, 2^2643672613 is an apocalyptic number.

It is an amenable number.

2643672613 is a deficient number, since it is larger than the sum of its proper divisors (13284987).

2643672613 is a wasteful number, since it uses less digits than its factorization.

2643672613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13284986.

The product of its digits is 217728, while the sum is 40.

The square root of 2643672613 is about 51416.6569605609. The cubic root of 2643672613 is about 1382.7252407129.

The spelling of 2643672613 in words is "two billion, six hundred forty-three million, six hundred seventy-two thousand, six hundred thirteen".