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80448884057 is a prime number
BaseRepresentation
bin100101011101100100…
…0001000110101011001
321200122121202202011102
41022323020020311121
52304224403242212
6100542510441145
75545412142323
oct1127310106531
9250577682142
1080448884057
1131133330343
12137122031b5
137781130899
143c72626613
15215cadb5c2
hex12bb208d59

80448884057 has 2 divisors, whose sum is σ = 80448884058. Its totient is φ = 80448884056.

The previous prime is 80448883973. The next prime is 80448884063. The reversal of 80448884057 is 75048884408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70811338816 + 9637545241 = 266104^2 + 98171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80448884057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80448883993 and 80448884011.

It is not a weakly prime, because it can be changed into another prime (80448884357) 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, 40224442028 + 40224442029.

It is an arithmetic number, because the mean of its divisors is an integer number (40224442029).

Almost surely, 280448884057 is an apocalyptic number.

It is an amenable number.

80448884057 is a deficient number, since it is larger than the sum of its proper divisors (1).

80448884057 is an equidigital number, since it uses as much as digits as its factorization.

80448884057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9175040, while the sum is 56.

The spelling of 80448884057 in words is "eighty billion, four hundred forty-eight million, eight hundred eighty-four thousand, fifty-seven".