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761380356389 is a prime number
BaseRepresentation
bin10110001010001011100…
…11100100000100100101
32200210020220110120110212
423011011303210010211
544433301332401024
61341435011225205
7106002500150612
oct13050563440445
92623226416425
10761380356389
112739993a8964
121036888a8205
1356a4ab88753
1428bcb235509
1514c12abea0e
hexb145ce4125

761380356389 has 2 divisors, whose sum is σ = 761380356390. Its totient is φ = 761380356388.

The previous prime is 761380356371. The next prime is 761380356391. The reversal of 761380356389 is 983653083167.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 617822724289 + 143557632100 = 786017^2 + 378890^2 .

It is a cyclic number.

It is not a de Polignac number, because 761380356389 - 220 = 761379307813 is a prime.

Together with 761380356391, 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 (761380355389) 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, 380690178194 + 380690178195.

It is an arithmetic number, because the mean of its divisors is an integer number (380690178195).

Almost surely, 2761380356389 is an apocalyptic number.

It is an amenable number.

761380356389 is a deficient number, since it is larger than the sum of its proper divisors (1).

761380356389 is an equidigital number, since it uses as much as digits as its factorization.

761380356389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 761380356389 in words is "seven hundred sixty-one billion, three hundred eighty million, three hundred fifty-six thousand, three hundred eighty-nine".