10689085439 has 2 divisors, whose sum is σ = 10689085440. Its totient is φ = 10689085438.

The previous prime is 10689085409. The next prime is 10689085447. The reversal of 10689085439 is 93458098601.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10689085439 is a prime.

It is a super-2 number, since 2×10689085439² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10689085409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5344542719 + 5344542720.

It is an arithmetic number, because the mean of its divisors is an integer number (5344542720).

Almost surely, 2^10689085439 is an apocalyptic number.

10689085439 is a deficient number, since it is larger than the sum of its proper divisors (1).

10689085439 is an equidigital number, since it uses as much as digits as its factorization.

10689085439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 10689085439 in words is "ten billion, six hundred eighty-nine million, eighty-five thousand, four hundred thirty-nine".