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86809082831213 is a prime number
BaseRepresentation
bin10011101111001111010000…
…100010111010000101101101
3102101100212102020110221120212
4103233033100202322011231
542334240000201044323
6504343313032352205
724166514666202161
oct2357172042720555
9371325366427525
1086809082831213
1125729586171866
1298a0222245665
1339590a4b30902
141761821122ca1
15a081842a2b78
hex4ef3d08ba16d

86809082831213 has 2 divisors, whose sum is σ = 86809082831214. Its totient is φ = 86809082831212.

The previous prime is 86809082831203. The next prime is 86809082831257. The reversal of 86809082831213 is 31213828090868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86768237612809 + 40845218404 = 9314947^2 + 202102^2 .

It is a cyclic number.

It is not a de Polignac number, because 86809082831213 - 226 = 86809015722349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86809082831203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43404541415606 + 43404541415607.

It is an arithmetic number, because the mean of its divisors is an integer number (43404541415607).

Almost surely, 286809082831213 is an apocalyptic number.

It is an amenable number.

86809082831213 is a deficient number, since it is larger than the sum of its proper divisors (1).

86809082831213 is an equidigital number, since it uses as much as digits as its factorization.

86809082831213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7962624, while the sum is 59.

The spelling of 86809082831213 in words is "eighty-six trillion, eight hundred nine billion, eighty-two million, eight hundred thirty-one thousand, two hundred thirteen".