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998426000909 is a prime number
BaseRepresentation
bin11101000011101101101…
…00111011111000001101
310112110010000122222122102
432201312310323320031
5112324234024012114
62042400502124445
7132063632660261
oct16416664737015
93473100588572
10998426000909
113554804a30a7
12141602a20725
13731c716772c
14364773a00a1
151ae884a12de
hexe876d3be0d

998426000909 has 2 divisors, whose sum is σ = 998426000910. Its totient is φ = 998426000908.

The previous prime is 998426000903. The next prime is 998426000917. The reversal of 998426000909 is 909000624899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 552936498409 + 445489502500 = 743597^2 + 667450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-998426000909 is a prime.

It is a super-2 number, since 2×9984260009092 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (998426000903) 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, 499213000454 + 499213000455.

It is an arithmetic number, because the mean of its divisors is an integer number (499213000455).

Almost surely, 2998426000909 is an apocalyptic number.

It is an amenable number.

998426000909 is a deficient number, since it is larger than the sum of its proper divisors (1).

998426000909 is an equidigital number, since it uses as much as digits as its factorization.

998426000909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2519424, while the sum is 56.

The spelling of 998426000909 in words is "nine hundred ninety-eight billion, four hundred twenty-six million, nine hundred nine", and thus it is an aban number.