10449985717 has 2 divisors, whose sum is σ = 10449985718. Its totient is φ = 10449985716.

The previous prime is 10449985691. The next prime is 10449985723. The reversal of 10449985717 is 71758994401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8198578116 + 2251407601 = 90546^2 + 47449^2 .

It is a cyclic number.

It is not a de Polignac number, because 10449985717 - 2⁷ = 10449985589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10449985747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5224992858 + 5224992859.

It is an arithmetic number, because the mean of its divisors is an integer number (5224992859).

Almost surely, 2^10449985717 is an apocalyptic number.

It is an amenable number.

10449985717 is a deficient number, since it is larger than the sum of its proper divisors (1).

10449985717 is an equidigital number, since it uses as much as digits as its factorization.

10449985717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 55.

It can be divided in two parts, 10449 and 985717, that added together give a triangular number (996166 = T₁₄₁₁).

The spelling of 10449985717 in words is "ten billion, four hundred forty-nine million, nine hundred eighty-five thousand, seven hundred seventeen".