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6681089707 is a prime number
BaseRepresentation
bin1100011100011100…
…10101011010101011
3122020121122112002221
412032032111122223
5102140324332312
63022542534511
7324364216435
oct61616253253
918217575087
106681089707
112919334646
121365597437
13826216a26
14475463655
15291822207
hex18e3956ab

6681089707 has 2 divisors, whose sum is σ = 6681089708. Its totient is φ = 6681089706.

The previous prime is 6681089693. The next prime is 6681089711. The reversal of 6681089707 is 7079801866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6681089707 - 27 = 6681089579 is a prime.

It is not a weakly prime, because it can be changed into another prime (6681089507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3340544853 + 3340544854.

It is an arithmetic number, because the mean of its divisors is an integer number (3340544854).

Almost surely, 26681089707 is an apocalyptic number.

6681089707 is a deficient number, since it is larger than the sum of its proper divisors (1).

6681089707 is an equidigital number, since it uses as much as digits as its factorization.

6681089707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 6681089707 is about 81737.9330971857. The cubic root of 6681089707 is about 1883.4283402059.

The spelling of 6681089707 in words is "six billion, six hundred eighty-one million, eighty-nine thousand, seven hundred seven".