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78791079383 is a prime number
BaseRepresentation
bin100100101100001010…
…0000111010111010111
321112101002022112200022
41021120110013113113
52242331004020013
6100110210135355
75456342060462
oct1113024072727
9245332275608
1078791079383
1130462568135
121332ab8155b
137578839183
143b563a62d9
1520b22c0008
hex12585075d7

78791079383 has 2 divisors, whose sum is σ = 78791079384. Its totient is φ = 78791079382.

The previous prime is 78791079349. The next prime is 78791079391. The reversal of 78791079383 is 38397019787.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78791079383 - 26 = 78791079319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78791079313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39395539691 + 39395539692.

It is an arithmetic number, because the mean of its divisors is an integer number (39395539692).

Almost surely, 278791079383 is an apocalyptic number.

78791079383 is a deficient number, since it is larger than the sum of its proper divisors (1).

78791079383 is an equidigital number, since it uses as much as digits as its factorization.

78791079383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16003008, while the sum is 62.

The spelling of 78791079383 in words is "seventy-eight billion, seven hundred ninety-one million, seventy-nine thousand, three hundred eighty-three".