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, 2^{18673426641442} 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".