5441645639 has 2 divisors, whose sum is σ = 5441645640. Its totient is φ = 5441645638.

The previous prime is 5441645609. The next prime is 5441645641. The reversal of 5441645639 is 9365461445.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5441645639 - 2²⁸ = 5173210183 is a prime.

It is a super-2 number, since 2×5441645639² = 59223014520895436642, which contains 22 as substring.

Together with 5441645641, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5441645593 and 5441645602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5441645609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720822819 + 2720822820.

It is an arithmetic number, because the mean of its divisors is an integer number (2720822820).

Almost surely, 2^5441645639 is an apocalyptic number.

5441645639 is a deficient number, since it is larger than the sum of its proper divisors (1).

5441645639 is an equidigital number, since it uses as much as digits as its factorization.

5441645639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 47.

The square root of 5441645639 is about 73767.5107279621. The cubic root of 5441645639 is about 1758.9091939834.

The spelling of 5441645639 in words is "five billion, four hundred forty-one million, six hundred forty-five thousand, six hundred thirty-nine".