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872800658381 is a prime number
BaseRepresentation
bin11001011001101101111…
…10010010001111001101
310002102211222102100220102
430230312332102033031
5103244443432032011
61504543055100445
7120025546121321
oct14546676221715
93072758370812
10872800658381
11307175243973
121211a3211725
13643c66c1b22
143035acd3981
1517a8471c73b
hexcb36f923cd

872800658381 has 2 divisors, whose sum is σ = 872800658382. Its totient is φ = 872800658380.

The previous prime is 872800658369. The next prime is 872800658413. The reversal of 872800658381 is 183856008278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 666984189481 + 205816468900 = 816691^2 + 453670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-872800658381 is a prime.

It is a super-2 number, since 2×8728006583812 (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 (872800658351) 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, 436400329190 + 436400329191.

It is an arithmetic number, because the mean of its divisors is an integer number (436400329191).

Almost surely, 2872800658381 is an apocalyptic number.

It is an amenable number.

872800658381 is a deficient number, since it is larger than the sum of its proper divisors (1).

872800658381 is an equidigital number, since it uses as much as digits as its factorization.

872800658381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 872800658381 in words is "eight hundred seventy-two billion, eight hundred million, six hundred fifty-eight thousand, three hundred eighty-one".