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83142816787 is a prime number
BaseRepresentation
bin100110101101110110…
…0101011010000010011
321221121100212201010201
41031123230223100103
52330234030114122
6102110103040031
76002233165522
oct1153354532023
9257540781121
1083142816787
1132295a52928
1214144440017
137ac02a1814
14404a31a4b9
152269373a27
hex135bb2b413

83142816787 has 2 divisors, whose sum is σ = 83142816788. Its totient is φ = 83142816786.

The previous prime is 83142816727. The next prime is 83142816833. The reversal of 83142816787 is 78761824138.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-83142816787 is a prime.

It is not a weakly prime, because it can be changed into another prime (83142816727) 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, 41571408393 + 41571408394.

It is an arithmetic number, because the mean of its divisors is an integer number (41571408394).

Almost surely, 283142816787 is an apocalyptic number.

83142816787 is a deficient number, since it is larger than the sum of its proper divisors (1).

83142816787 is an equidigital number, since it uses as much as digits as its factorization.

83142816787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3612672, while the sum is 55.

The spelling of 83142816787 in words is "eighty-three billion, one hundred forty-two million, eight hundred sixteen thousand, seven hundred eighty-seven".