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18057609744805 = 531571204029261
BaseRepresentation
bin1000001101100010111010…
…11010100001000110100101
32100221021211212111220201201
410012301131122201012211
54331323441043313210
6102223315033522501
73542422255202311
oct406613532410645
970837755456651
1018057609744805
115832209a381a4
122037828b73431
13a0ca96223577
14465dc8a1ab41
15214abe85c53a
hex106c5d6a11a5

18057609744805 has 16 divisors (see below), whose sum is σ = 22407309669888. Its totient is φ = 13955601384000.

The previous prime is 18057609744781. The next prime is 18057609744833. The reversal of 18057609744805 is 50844790675081.

It is not a de Polignac number, because 18057609744805 - 213 = 18057609736613 is a prime.

It is a Duffinian number.

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, 101926126 + ... + 102103135.

It is an arithmetic number, because the mean of its divisors is an integer number (1400456854368).

Almost surely, 218057609744805 is an apocalyptic number.

It is an amenable number.

18057609744805 is a deficient number, since it is larger than the sum of its proper divisors (4349699925083).

18057609744805 is a wasteful number, since it uses less digits than its factorization.

18057609744805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204029868.

The product of its (nonzero) digits is 67737600, while the sum is 64.

The spelling of 18057609744805 in words is "eighteen trillion, fifty-seven billion, six hundred nine million, seven hundred forty-four thousand, eight hundred five".

Divisors: 1 5 31 155 571 2855 17701 88505 204029261 1020146305 6324907091 31624535455 116500708031 582503540155 3611521948961 18057609744805