5145644687 has 2 divisors, whose sum is σ = 5145644688. Its totient is φ = 5145644686.

The previous prime is 5145644681. The next prime is 5145644729. The reversal of 5145644687 is 7864465415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5145644687 - 2²⁰ = 5144596111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5145644681) 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, 2572822343 + 2572822344.

It is an arithmetic number, because the mean of its divisors is an integer number (2572822344).

Almost surely, 2^5145644687 is an apocalyptic number.

5145644687 is a deficient number, since it is larger than the sum of its proper divisors (1).

5145644687 is an equidigital number, since it uses as much as digits as its factorization.

5145644687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3225600, while the sum is 50.

The square root of 5145644687 is about 71733.1491501663. The cubic root of 5145644687 is about 1726.4205549093.

The spelling of 5145644687 in words is "five billion, one hundred forty-five million, six hundred forty-four thousand, six hundred eighty-seven".