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80118744451 is a prime number
BaseRepresentation
bin100101010011101110…
…0110000010110000011
321122210121112220202121
41022213130300112003
52303040344310301
6100450034425111
75534263043224
oct1124734602603
9248717486677
1080118744451
1130a83a40599
121363b732197
13772a90c3c5
143c4084924b
15213db273a1
hex12a7730583

80118744451 has 2 divisors, whose sum is σ = 80118744452. Its totient is φ = 80118744450.

The previous prime is 80118744449. The next prime is 80118744467. The reversal of 80118744451 is 15444781108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80118744451 - 21 = 80118744449 is a prime.

Together with 80118744449, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 80118744398 and 80118744407.

It is not a weakly prime, because it can be changed into another prime (80118744401) 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, 40059372225 + 40059372226.

It is an arithmetic number, because the mean of its divisors is an integer number (40059372226).

Almost surely, 280118744451 is an apocalyptic number.

80118744451 is a deficient number, since it is larger than the sum of its proper divisors (1).

80118744451 is an equidigital number, since it uses as much as digits as its factorization.

80118744451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 143360, while the sum is 43.

The spelling of 80118744451 in words is "eighty billion, one hundred eighteen million, seven hundred forty-four thousand, four hundred fifty-one".