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80808006637 is a prime number
BaseRepresentation
bin100101101000010001…
…0000101001111101101
321201120122112001201201
41023100202011033231
52310443322203022
6101042300005501
75560332503041
oct1132042051755
9251518461651
1080808006637
11312a8016466
12137b2530891
13780a65c157
143ca81ca021
15217e3c8127
hex12d08853ed

80808006637 has 2 divisors, whose sum is σ = 80808006638. Its totient is φ = 80808006636.

The previous prime is 80808006571. The next prime is 80808006649. The reversal of 80808006637 is 73660080808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80575931881 + 232074756 = 283859^2 + 15234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80808006637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80808036637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40404003318 + 40404003319.

It is an arithmetic number, because the mean of its divisors is an integer number (40404003319).

Almost surely, 280808006637 is an apocalyptic number.

It is an amenable number.

80808006637 is a deficient number, since it is larger than the sum of its proper divisors (1).

80808006637 is an equidigital number, since it uses as much as digits as its factorization.

80808006637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 80808006637 in words is "eighty billion, eight hundred eight million, six thousand, six hundred thirty-seven".