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2068619519 is a prime number
BaseRepresentation
bin111101101001100…
…1010000011111111
312100011110202111202
41323103022003333
513214031311034
6541133410115
7102155655461
oct17323120377
95304422452
102068619519
1197175550a
1249893993b
1326c751725
14158a3c131
15c191947e
hex7b4ca0ff

2068619519 has 2 divisors, whose sum is σ = 2068619520. Its totient is φ = 2068619518.

The previous prime is 2068619489. The next prime is 2068619599. The reversal of 2068619519 is 9159168602.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2068619519 - 28 = 2068619263 is a prime.

It is a super-2 number, since 2×20686195192 = 8558373428775582722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2068619599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034309759 + 1034309760.

It is an arithmetic number, because the mean of its divisors is an integer number (1034309760).

Almost surely, 22068619519 is an apocalyptic number.

2068619519 is a deficient number, since it is larger than the sum of its proper divisors (1).

2068619519 is an equidigital number, since it uses as much as digits as its factorization.

2068619519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 2068619519 is about 45482.0790971565. The cubic root of 2068619519 is about 1274.1685249588.

The spelling of 2068619519 in words is "two billion, sixty-eight million, six hundred nineteen thousand, five hundred nineteen".