2646705413 has 4 divisors (see below), whose sum is σ = 2887315008. Its totient is φ = 2406095820.

The previous prime is 2646705403. The next prime is 2646705421. The reversal of 2646705413 is 3145076462.

It is a happy number.

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 2646705413 - 2⁸ = 2646705157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646705403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120304781 + ... + 120304802.

It is an arithmetic number, because the mean of its divisors is an integer number (721828752).

Almost surely, 2^2646705413 is an apocalyptic number.

It is an amenable number.

2646705413 is a deficient number, since it is larger than the sum of its proper divisors (240609595).

2646705413 is a wasteful number, since it uses less digits than its factorization.

2646705413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240609594.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 2646705413 is about 51446.1408951148. The cubic root of 2646705413 is about 1383.2537890811.

The spelling of 2646705413 in words is "two billion, six hundred forty-six million, seven hundred five thousand, four hundred thirteen".