5144645647 has 2 divisors, whose sum is σ = 5144645648. Its totient is φ = 5144645646.

The previous prime is 5144645567. The next prime is 5144645687. The reversal of 5144645647 is 7465464415.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5144645647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5144645597 and 5144645606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5144645687) 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 as a sum of consecutive naturals, namely, 2572322823 + 2572322824.

It is an arithmetic number, because the mean of its divisors is an integer number (2572322824).

Almost surely, 2^5144645647 is an apocalyptic number.

5144645647 is a deficient number, since it is larger than the sum of its proper divisors (1).

5144645647 is an equidigital number, since it uses as much as digits as its factorization.

5144645647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 46.

The square root of 5144645647 is about 71726.1852254809. The cubic root of 5144645647 is about 1726.3088180308.

The spelling of 5144645647 in words is "five billion, one hundred forty-four million, six hundred forty-five thousand, six hundred forty-seven".