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8868364469 is a prime number
BaseRepresentation
bin10000100001001100…
…01000000010110101
3211220001101121000022
420100212020002311
5121130300130334
64023555454525
7432523565666
oct102046100265
924801347008
108868364469
113840a62538
121875bb7445
13ab4411253
14601b4b36d
1536d87882e
hex2109880b5

8868364469 has 2 divisors, whose sum is σ = 8868364470. Its totient is φ = 8868364468.

The previous prime is 8868364457. The next prime is 8868364511. The reversal of 8868364469 is 9644638688.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5261761444 + 3606603025 = 72538^2 + 60055^2 .

It is a cyclic number.

It is not a de Polignac number, because 8868364469 - 28 = 8868364213 is a prime.

It is a super-2 number, since 2×88683644692 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8868364409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4434182234 + 4434182235.

It is an arithmetic number, because the mean of its divisors is an integer number (4434182235).

Almost surely, 28868364469 is an apocalyptic number.

It is an amenable number.

8868364469 is a deficient number, since it is larger than the sum of its proper divisors (1).

8868364469 is an equidigital number, since it uses as much as digits as its factorization.

8868364469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47775744, while the sum is 62.

The square root of 8868364469 is about 94171.9940799811. The cubic root of 8868364469 is about 2069.8927549905.

The spelling of 8868364469 in words is "eight billion, eight hundred sixty-eight million, three hundred sixty-four thousand, four hundred sixty-nine".