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80713580537 is a prime number
BaseRepresentation
bin100101100101011100…
…1110111111111111001
321201100001211201110202
41023022321313333321
52310300134034122
6101025044051545
75555105054222
oct1131271677771
9251301751422
1080713580537
1131259791767
1213786993bb5
1377c3c1a715
143c9984a249
152175e74e92
hex12cae77ff9

80713580537 has 2 divisors, whose sum is σ = 80713580538. Its totient is φ = 80713580536.

The previous prime is 80713580533. The next prime is 80713580581. The reversal of 80713580537 is 73508531708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78010724416 + 2702856121 = 279304^2 + 51989^2 .

It is a cyclic number.

It is not a de Polignac number, because 80713580537 - 22 = 80713580533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80713580491 and 80713580500.

It is not a weakly prime, because it can be changed into another prime (80713580533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40356790268 + 40356790269.

It is an arithmetic number, because the mean of its divisors is an integer number (40356790269).

Almost surely, 280713580537 is an apocalyptic number.

It is an amenable number.

80713580537 is a deficient number, since it is larger than the sum of its proper divisors (1).

80713580537 is an equidigital number, since it uses as much as digits as its factorization.

80713580537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 80713580537 in words is "eighty billion, seven hundred thirteen million, five hundred eighty thousand, five hundred thirty-seven".