999465340109 has 2 divisors, whose sum is σ = 999465340110. Its totient is φ = 999465340108.

The previous prime is 999465340067. The next prime is 999465340123. The reversal of 999465340109 is 901043564999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 987171409225 + 12293930884 = 993565^2 + 110878^2 .

It is a cyclic number.

It is not a de Polignac number, because 999465340109 - 2³² = 995170372813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999465340309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499732670054 + 499732670055.

It is an arithmetic number, because the mean of its divisors is an integer number (499732670055).

Almost surely, 2^999465340109 is an apocalyptic number.

It is an amenable number.

999465340109 is a deficient number, since it is larger than the sum of its proper divisors (1).

999465340109 is an equidigital number, since it uses as much as digits as its factorization.

999465340109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9447840, while the sum is 59.

The spelling of 999465340109 in words is "nine hundred ninety-nine billion, four hundred sixty-five million, three hundred forty thousand, one hundred nine".