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27459678353 = 37432401381
BaseRepresentation
bin11001100100101110…
…010111000010010001
32121212201020012012012
4121210232113002101
5422214134201403
620340444112305
71661322262202
oct314456270221
977781205165
1027459678353
11107112aa858
1253a4235695
132787cb88b3
141486cdd5a9
15aaaad5ed8
hex664b97091

27459678353 has 12 divisors (see below), whose sum is σ = 28873012788. Its totient is φ = 26096122080.

The previous prime is 27459678319. The next prime is 27459678361. The reversal of 27459678353 is 35387695472.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18744895744 + 8714782609 = 136912^2 + 93353^2 .

It is not a de Polignac number, because 27459678353 - 26 = 27459678289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27459678292 and 27459678301.

It is not an unprimeable number, because it can be changed into a prime (27459978353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132278 + ... + 269103.

It is an arithmetic number, because the mean of its divisors is an integer number (2406084399).

Almost surely, 227459678353 is an apocalyptic number.

It is an amenable number.

27459678353 is a deficient number, since it is larger than the sum of its proper divisors (1413334435).

27459678353 is an equidigital number, since it uses as much as digits as its factorization.

27459678353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401504 (or 401461 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 59.

The spelling of 27459678353 in words is "twenty-seven billion, four hundred fifty-nine million, six hundred seventy-eight thousand, three hundred fifty-three".

Divisors: 1 37 43 1591 1849 68413 401381 14851097 17259383 638597171 742153469 27459678353