440899812917 has 2 divisors, whose sum is σ = 440899812918. Its totient is φ = 440899812916.

The previous prime is 440899812907. The next prime is 440899812923. The reversal of 440899812917 is 719218998044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 356497361476 + 84402451441 = 597074^2 + 290521^2 .

It is a cyclic number.

It is not a de Polignac number, because 440899812917 - 2³⁴ = 423719943733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 440899812917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440899812907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220449906458 + 220449906459.

It is an arithmetic number, because the mean of its divisors is an integer number (220449906459).

Almost surely, 2^440899812917 is an apocalyptic number.

It is an amenable number.

440899812917 is a deficient number, since it is larger than the sum of its proper divisors (1).

440899812917 is an equidigital number, since it uses as much as digits as its factorization.

440899812917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10450944, while the sum is 62.

The spelling of 440899812917 in words is "four hundred forty billion, eight hundred ninety-nine million, eight hundred twelve thousand, nine hundred seventeen".