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85042427039 is a prime number
BaseRepresentation
bin100111100110011101…
…1000111010010011111
322010111202022220111222
41033030323013102133
52343131330131124
6103022402203555
76100300463033
oct1171473072237
9263452286458
1085042427039
1133080262159
12145946535bb
1380339c9b5b
14418a7221c3
15232b00625e
hex13ccec749f

85042427039 has 2 divisors, whose sum is σ = 85042427040. Its totient is φ = 85042427038.

The previous prime is 85042427011. The next prime is 85042427081. The reversal of 85042427039 is 93072424058.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-85042427039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85042427339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42521213519 + 42521213520.

It is an arithmetic number, because the mean of its divisors is an integer number (42521213520).

Almost surely, 285042427039 is an apocalyptic number.

85042427039 is a deficient number, since it is larger than the sum of its proper divisors (1).

85042427039 is an equidigital number, since it uses as much as digits as its factorization.

85042427039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 85042427039 in words is "eighty-five billion, forty-two million, four hundred twenty-seven thousand, thirty-nine".