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868168712255 = 51336899361973
BaseRepresentation
bin11001010001000101110…
…00110100000000111111
310001222220011121010100012
430220202320310000333
5103211002142243010
61502455312253435
7116503013203235
oct14504270640077
93058804533305
10868168712255
11305208672219
1212030bb4127b
1363b38b9aac0
143003ba7c955
15178b2c69005
hexca22e3403f

868168712255 has 16 divisors (see below), whose sum is σ = 1121974610400. Its totient is φ = 641090057088.

The previous prime is 868168712237. The next prime is 868168712269. The reversal of 868168712255 is 552217861868.

It is not a de Polignac number, because 868168712255 - 210 = 868168711231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 868168712194 and 868168712203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2217449 + ... + 2579421.

It is an arithmetic number, because the mean of its divisors is an integer number (70123413150).

Almost surely, 2868168712255 is an apocalyptic number.

868168712255 is a deficient number, since it is larger than the sum of its proper divisors (253805898145).

868168712255 is a wasteful number, since it uses less digits than its factorization.

868168712255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398890.

The product of its digits is 12902400, while the sum is 59.

The spelling of 868168712255 in words is "eight hundred sixty-eight billion, one hundred sixty-eight million, seven hundred twelve thousand, two hundred fifty-five".

Divisors: 1 5 13 65 36899 184495 361973 479687 1809865 2398435 4705649 23528245 13356441727 66782208635 173633742451 868168712255