909990095813 has 2 divisors, whose sum is σ = 909990095814. Its totient is φ = 909990095812.

The previous prime is 909990095783. The next prime is 909990095857. The reversal of 909990095813 is 318590099909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 857998343524 + 51991752289 = 926282^2 + 228017^2 .

It is an emirp because it is prime and its reverse (318590099909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 909990095813 - 2⁸ = 909990095557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (909990095213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454995047906 + 454995047907.

It is an arithmetic number, because the mean of its divisors is an integer number (454995047907).

Almost surely, 2^909990095813 is an apocalyptic number.

It is an amenable number.

909990095813 is a deficient number, since it is larger than the sum of its proper divisors (1).

909990095813 is an equidigital number, since it uses as much as digits as its factorization.

909990095813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7085880, while the sum is 62.

The spelling of 909990095813 in words is "nine hundred nine billion, nine hundred ninety million, ninety-five thousand, eight hundred thirteen".