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80073387391 is a prime number
BaseRepresentation
bin100101010010010111…
…1101110110101111111
321122200110012112120111
41022210233232311333
52302442241344031
6100441334330451
75533202364004
oct1124457566577
9248613175514
1080073387391
1130a60381118
12136284b9a27
1377213bb3ca
143c387dd8ab
152139b681b1
hex12a4beed7f

80073387391 has 2 divisors, whose sum is σ = 80073387392. Its totient is φ = 80073387390.

The previous prime is 80073387379. The next prime is 80073387451. The reversal of 80073387391 is 19378337008.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80073387391 - 27 = 80073387263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80073387791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40036693695 + 40036693696.

It is an arithmetic number, because the mean of its divisors is an integer number (40036693696).

Almost surely, 280073387391 is an apocalyptic number.

80073387391 is a deficient number, since it is larger than the sum of its proper divisors (1).

80073387391 is an equidigital number, since it uses as much as digits as its factorization.

80073387391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 80073387391 in words is "eighty billion, seventy-three million, three hundred eighty-seven thousand, three hundred ninety-one".