2644092061 has 4 divisors (see below), whose sum is σ = 2847483772. Its totient is φ = 2440700352.

The previous prime is 2644092053. The next prime is 2644092067. The reversal of 2644092061 is 1602904462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 827712900 + 1816379161 = 28770^2 + 42619^2 .

It is a cyclic number.

It is not a de Polignac number, because 2644092061 - 2³ = 2644092053 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 (2644092067) 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, 101695836 + ... + 101695861.

It is an arithmetic number, because the mean of its divisors is an integer number (711870943).

Almost surely, 2^2644092061 is an apocalyptic number.

It is an amenable number.

2644092061 is a deficient number, since it is larger than the sum of its proper divisors (203391711).

2644092061 is a wasteful number, since it uses less digits than its factorization.

2644092061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203391710.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 2644092061 is about 51420.7357104116. The cubic root of 2644092061 is about 1382.7983650807.

The spelling of 2644092061 in words is "two billion, six hundred forty-four million, ninety-two thousand, sixty-one".