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2127681834359 is a prime number
BaseRepresentation
bin11110111101100011101…
…110000100110101110111
321112101220210202002011012
4132331203232010311313
5234324443022144414
64305235445502435
7306501640122014
oct36754356046567
97471823662135
102127681834359
11750387a21844
122a4438411a1b
131258410a3553
1474da211c70b
153a52c58233e
hex1ef63b84d77

2127681834359 has 2 divisors, whose sum is σ = 2127681834360. Its totient is φ = 2127681834358.

The previous prime is 2127681834353. The next prime is 2127681834401. The reversal of 2127681834359 is 9534381867212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2127681834359 is a prime.

It is a super-2 number, since 2×21276818343592 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2127681834298 and 2127681834307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2127681834353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063840917179 + 1063840917180.

It is an arithmetic number, because the mean of its divisors is an integer number (1063840917180).

Almost surely, 22127681834359 is an apocalyptic number.

2127681834359 is a deficient number, since it is larger than the sum of its proper divisors (1).

2127681834359 is an equidigital number, since it uses as much as digits as its factorization.

2127681834359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 59.

The spelling of 2127681834359 in words is "two trillion, one hundred twenty-seven billion, six hundred eighty-one million, eight hundred thirty-four thousand, three hundred fifty-nine".