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80808808897 is a prime number
BaseRepresentation
bin100101101000010010…
…1001001000111000001
321201120201000211020001
41023100211021013001
52310444023341042
6101042325120001
75560342354015
oct1132045110701
9251521024201
1080808808897
11312a8514193
12137b2859001
13780a88036b
143ca8358545
15217e4d5bb7
hex12d09491c1

80808808897 has 2 divisors, whose sum is σ = 80808808898. Its totient is φ = 80808808896.

The previous prime is 80808808867. The next prime is 80808808943. The reversal of 80808808897 is 79880880808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77190064561 + 3618744336 = 277831^2 + 60156^2 .

It is a cyclic number.

It is not a de Polignac number, because 80808808897 - 235 = 46449070529 is a prime.

It is not a weakly prime, because it can be changed into another prime (80808808807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40404404448 + 40404404449.

It is an arithmetic number, because the mean of its divisors is an integer number (40404404449).

Almost surely, 280808808897 is an apocalyptic number.

It is an amenable number.

80808808897 is a deficient number, since it is larger than the sum of its proper divisors (1).

80808808897 is an equidigital number, since it uses as much as digits as its factorization.

80808808897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16515072, while the sum is 64.

The spelling of 80808808897 in words is "eighty billion, eight hundred eight million, eight hundred eight thousand, eight hundred ninety-seven".