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19142127797759 = 414571329776831
BaseRepresentation
bin1000101101000110111111…
…01110100100010111111111
32111202222011210120021201022
410112203133232210113333
510002111034204012014
6104413434435334355
74013654525433101
oct426433756442777
974688153507638
1019142127797759
11611014912022a
122191a57a513bb
13a8b13067b815
144a26abc87571
15232de6049a8e
hex1168dfba45ff

19142127797759 has 16 divisors (see below), whose sum is σ = 19653650800896. Its totient is φ = 18632737843200.

The previous prime is 19142127797753. The next prime is 19142127797761. The reversal of 19142127797759 is 95779772124191.

It is a cyclic number.

It is not a de Polignac number, because 19142127797759 - 220 = 19142126749183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19142127797692 and 19142127797701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19142127797753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249107474 + ... + 249184304.

It is an arithmetic number, because the mean of its divisors is an integer number (1228353175056).

Almost surely, 219142127797759 is an apocalyptic number.

19142127797759 is a deficient number, since it is larger than the sum of its proper divisors (511523003137).

19142127797759 is a wasteful number, since it uses less digits than its factorization.

19142127797759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90626.

The product of its digits is 140026320, while the sum is 71.

The spelling of 19142127797759 in words is "nineteen trillion, one hundred forty-two billion, one hundred twenty-seven million, seven hundred ninety-seven thousand, seven hundred fifty-nine".

Divisors: 1 41 457 13297 18737 76831 545177 3150071 6076729 35111767 249145889 1021621807 1439582447 41886494087 466881165799 19142127797759