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12806813632877 = 1119257701340129
BaseRepresentation
bin1011101001011101000110…
…0100111100100101101101
31200100022121212021020221022
42322113101210330211231
53134311323242223002
643123211410143525
72461155531516305
oct272272144744555
950308555236838
1012806813632877
114098380471850
12152a067b81ba5
1371b8a617c194
14323bd2c2a605
151732044b6ba2
hexba5d193c96d

12806813632877 has 32 divisors (see below), whose sum is σ = 14784716419200. Its totient is φ = 10971168768000.

The previous prime is 12806813632859. The next prime is 12806813632913. The reversal of 12806813632877 is 77823631860821.

It is a cyclic number.

It is not a de Polignac number, because 12806813632877 - 210 = 12806813631853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12806813632177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37482749 + ... + 37822877.

It is an arithmetic number, because the mean of its divisors is an integer number (462022388100).

Almost surely, 212806813632877 is an apocalyptic number.

It is an amenable number.

12806813632877 is a deficient number, since it is larger than the sum of its proper divisors (1977902786323).

12806813632877 is a wasteful number, since it uses less digits than its factorization.

12806813632877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341117.

The product of its (nonzero) digits is 32514048, while the sum is 62.

The spelling of 12806813632877 in words is "twelve trillion, eight hundred six billion, eight hundred thirteen million, six hundred thirty-two thousand, eight hundred seventy-seven".

Divisors: 1 11 19 209 257 701 2827 4883 7711 13319 53713 146509 180157 340129 1981727 3422983 3741419 6462451 37652813 71086961 87413153 238430429 961544683 1660849907 2622734719 4530178151 18269348977 49831959661 61276620253 674042822783 1164255784807 12806813632877