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85747125019 is a prime number
BaseRepresentation
bin100111111011011101…
…1010100101100011011
322012022212100021102011
41033312323110230123
52401102231000034
6103220334250351
76123615352063
oct1176673245433
9265285307364
1085747125019
1133402020186
12147506569b7
1381169c26ca
1442161603a3
15236cd05864
hex13f6ed4b1b

85747125019 has 2 divisors, whose sum is σ = 85747125020. Its totient is φ = 85747125018.

The previous prime is 85747124929. The next prime is 85747125047. The reversal of 85747125019 is 91052174758.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85747125019 - 221 = 85745027867 is a prime.

It is a super-2 number, since 2×857471250192 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85747125059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42873562509 + 42873562510.

It is an arithmetic number, because the mean of its divisors is an integer number (42873562510).

Almost surely, 285747125019 is an apocalyptic number.

85747125019 is a deficient number, since it is larger than the sum of its proper divisors (1).

85747125019 is an equidigital number, since it uses as much as digits as its factorization.

85747125019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 85747125019 in words is "eighty-five billion, seven hundred forty-seven million, one hundred twenty-five thousand, nineteen".