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18631047743353 = 109191894905987
BaseRepresentation
bin1000011110001111000001…
…11110111000011101111001
32102222002222202021111020101
410033013200332320131321
54420222341210241403
6103342552444155401
73632022505600003
oct417074076703571
972862882244211
1018631047743353
115a33423816981
12210a9a4238b61
13a51b91b57346
14485a672b5373
1522498281271d
hex10f1e0fb8779

18631047743353 has 8 divisors (see below), whose sum is σ = 18900414466560. Its totient is φ = 18363470832720.

The previous prime is 18631047743309. The next prime is 18631047743387. The reversal of 18631047743353 is 35334774013681.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18631047743353 - 213 = 18631047735161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18631047743294 and 18631047743303.

It is not an unprimeable number, because it can be changed into a prime (18631047713353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447432175 + ... + 447473812.

It is an arithmetic number, because the mean of its divisors is an integer number (2362551808320).

Almost surely, 218631047743353 is an apocalyptic number.

It is an amenable number.

18631047743353 is a deficient number, since it is larger than the sum of its proper divisors (269366723207).

18631047743353 is a wasteful number, since it uses less digits than its factorization.

18631047743353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894906287.

The product of its (nonzero) digits is 15240960, while the sum is 55.

The spelling of 18631047743353 in words is "eighteen trillion, six hundred thirty-one billion, forty-seven million, seven hundred forty-three thousand, three hundred fifty-three".

Divisors: 1 109 191 20819 894905987 97544752583 170927043517 18631047743353