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12613853017745 = 571721199752971
BaseRepresentation
bin1011011110001110010000…
…1110100111011010010001
31122122212120002211101002222
42313203210032213122101
53123131132333031440
642454420222350425
72441215015405250
oct267434416473221
948585502741088
1012613853017745
1140235612056a1
1214b8795a2b415
137066343757c5
143187299d8797
1516d1ae03b2b5
hexb78e43a7691

12613853017745 has 16 divisors (see below), whose sum is σ = 18316586567808. Its totient is φ = 8140705140480.

The previous prime is 12613853017741. The next prime is 12613853017861. The reversal of 12613853017745 is 54771035831621.

It is not a de Polignac number, because 12613853017745 - 22 = 12613853017741 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12613853017741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10599875891 + ... + 10599877080.

It is an arithmetic number, because the mean of its divisors is an integer number (1144786660488).

Almost surely, 212613853017745 is an apocalyptic number.

It is an amenable number.

12613853017745 is a deficient number, since it is larger than the sum of its proper divisors (5702733550063).

12613853017745 is a wasteful number, since it uses less digits than its factorization.

12613853017745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21199753000.

The product of its (nonzero) digits is 4233600, while the sum is 53.

It can be divided in two parts, 12613 and 853017745, that added together give a palindrome (853030358).

The spelling of 12613853017745 in words is "twelve trillion, six hundred thirteen billion, eight hundred fifty-three million, seventeen thousand, seven hundred forty-five".

Divisors: 1 5 7 17 35 85 119 595 21199752971 105998764855 148398270797 360395800507 741991353985 1801979002535 2522770603549 12613853017745