2644040467 has 2 divisors, whose sum is σ = 2644040468. Its totient is φ = 2644040466.

The previous prime is 2644040449. The next prime is 2644040471. The reversal of 2644040467 is 7640404462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2644040467 - 2⁷ = 2644040339 is a prime.

It is a super-2 number, since 2×2644040467² = 13981899982267156178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2644040407) 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 as a sum of consecutive naturals, namely, 1322020233 + 1322020234.

It is an arithmetic number, because the mean of its divisors is an integer number (1322020234).

Almost surely, 2^2644040467 is an apocalyptic number.

2644040467 is a deficient number, since it is larger than the sum of its proper divisors (1).

2644040467 is an equidigital number, since it uses as much as digits as its factorization.

2644040467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 37.

The square root of 2644040467 is about 51420.2340231936. The cubic root of 2644040467 is about 1382.7893708701.

The spelling of 2644040467 in words is "two billion, six hundred forty-four million, forty thousand, four hundred sixty-seven".