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79488574349 is a prime number
BaseRepresentation
bin100101000000111100…
…0110110001110001101
321121011200202221220012
41022001320312032031
52300243033334344
6100303324003005
75512541506502
oct1120170661615
9247150687805
1079488574349
1130790256458
12134a4690465
13765a1ac2a2
143bc0c8b4a9
15210364a29e
hex1281e3638d

79488574349 has 2 divisors, whose sum is σ = 79488574350. Its totient is φ = 79488574348.

The previous prime is 79488574327. The next prime is 79488574351. The reversal of 79488574349 is 94347588497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54739621225 + 24748953124 = 233965^2 + 157318^2 .

It is a cyclic number.

It is not a de Polignac number, because 79488574349 - 28 = 79488574093 is a prime.

Together with 79488574351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79482574349) 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, 39744287174 + 39744287175.

It is an arithmetic number, because the mean of its divisors is an integer number (39744287175).

Almost surely, 279488574349 is an apocalyptic number.

It is an amenable number.

79488574349 is a deficient number, since it is larger than the sum of its proper divisors (1).

79488574349 is an equidigital number, since it uses as much as digits as its factorization.

79488574349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 243855360, while the sum is 68.

The spelling of 79488574349 in words is "seventy-nine billion, four hundred eighty-eight million, five hundred seventy-four thousand, three hundred forty-nine".