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18673426641442 = 229422923761263
BaseRepresentation
bin1000011111011101111101…
…11101100011001000100010
32110010011101012122120102111
410033232332331203020202
54421421134210011232
6103414242003105534
73635052630355516
oct417567675431042
973104335576374
1018673426641442
115a4a3a05842a1
1221170509722aa
13a55b86a176c1
14487b277ac146
15225b130a3047
hex10fbbef63222

18673426641442 has 16 divisors (see below), whose sum is σ = 28976113434240. Its totient is φ = 9014724531792.

The previous prime is 18673426641409. The next prime is 18673426641449. The reversal of 18673426641442 is 24414662437681.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is not an unprimeable number, because it can be changed into a prime (18673426641449) 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, 24148903 + ... + 24910165.

It is an arithmetic number, because the mean of its divisors is an integer number (1811007089640).

Almost surely, 218673426641442 is an apocalyptic number.

18673426641442 is a deficient number, since it is larger than the sum of its proper divisors (10302686792798).

18673426641442 is a wasteful number, since it uses less digits than its factorization.

18673426641442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184217.

The product of its digits is 37158912, while the sum is 58.

The spelling of 18673426641442 in words is "eighteen trillion, six hundred seventy-three billion, four hundred twenty-six million, six hundred forty-one thousand, four hundred forty-two".

Divisors: 1 2 29 58 422923 761263 845846 1522526 12264767 22076627 24529534 44153254 321955631749 643911263498 9336713320721 18673426641442