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538442987087 is a prime number
BaseRepresentation
bin1111101010111011011…
…00111111011001001111
31220110211000110210120002
413311131230333121033
532310212401041322
61051205101514515
753621055606035
oct7653554773117
91813730423502
10538442987087
11198397035705
128842b572a3b
133ba0c768905
141c0bcaca555
15e015aacc92
hex7d5db3f64f

538442987087 has 2 divisors, whose sum is σ = 538442987088. Its totient is φ = 538442987086.

The previous prime is 538442987083. The next prime is 538442987101. The reversal of 538442987087 is 780789244835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 538442987087 - 22 = 538442987083 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538442987083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269221493543 + 269221493544.

It is an arithmetic number, because the mean of its divisors is an integer number (269221493544).

Almost surely, 2538442987087 is an apocalyptic number.

538442987087 is a deficient number, since it is larger than the sum of its proper divisors (1).

538442987087 is an equidigital number, since it uses as much as digits as its factorization.

538442987087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108380160, while the sum is 65.

The spelling of 538442987087 in words is "five hundred thirty-eight billion, four hundred forty-two million, nine hundred eighty-seven thousand, eighty-seven".