10439688647 has 2 divisors, whose sum is σ = 10439688648. Its totient is φ = 10439688646.

The previous prime is 10439688641. The next prime is 10439688709. The reversal of 10439688647 is 74688693401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10439688647 - 2⁶ = 10439688583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10439688592 and 10439688601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10439688641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5219844323 + 5219844324.

It is an arithmetic number, because the mean of its divisors is an integer number (5219844324).

Almost surely, 2^10439688647 is an apocalyptic number.

10439688647 is a deficient number, since it is larger than the sum of its proper divisors (1).

10439688647 is an equidigital number, since it uses as much as digits as its factorization.

10439688647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 10439688647 in words is "ten billion, four hundred thirty-nine million, six hundred eighty-eight thousand, six hundred forty-seven".