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18734606641371 = 3145940897104659
BaseRepresentation
bin1000100001001111111011…
…00100101110100011011011
32110100000021221121120202210
410100213331210232203123
54423421433300010441
6103502320502530203
73642350005652325
oct420477544564333
973300257546683
1018734606641371
115a73336047805
122126a85a36963
13a5b886a858aa
1448aa8cc66615
152274e41e0616
hex1109fd92e8db

18734606641371 has 16 divisors (see below), whose sum is σ = 24997446531200. Its totient is φ = 12480752844288.

The previous prime is 18734606641339. The next prime is 18734606641403. The reversal of 18734606641371 is 17314660643781.

It is an interprime number because it is at equal distance from previous prime (18734606641339) and next prime (18734606641403).

It is not a de Polignac number, because 18734606641371 - 25 = 18734606641339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18734606641171) 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, 178953840 + ... + 179058498.

It is an arithmetic number, because the mean of its divisors is an integer number (1562340408200).

Almost surely, 218734606641371 is an apocalyptic number.

18734606641371 is a deficient number, since it is larger than the sum of its proper divisors (6262839889829).

18734606641371 is a wasteful number, since it uses less digits than its factorization.

18734606641371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147018.

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 18734606641371 in words is "eighteen trillion, seven hundred thirty-four billion, six hundred six million, six hundred forty-one thousand, three hundred seventy-one".

Divisors: 1 3 1459 4377 40897 104659 122691 313977 59668723 152697481 179006169 458092443 4280239123 12840717369 6244868880457 18734606641371