18496442379247 has 6 divisors (see below), whose sum is σ = 21516269706528. Its totient is φ = 15854093467884.

The previous prime is 18496442379227. The next prime is 18496442379257. The reversal of 18496442379247 is 74297324469481.

It is not a de Polignac number, because 18496442379247 - 2¹⁹ = 18496441854959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18496442379227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 188739207903 + ... + 188739208000.

It is an arithmetic number, because the mean of its divisors is an integer number (3586044951088).

Almost surely, 2^{18496442379247} is an apocalyptic number.

18496442379247 is a deficient number, since it is larger than the sum of its proper divisors (3019827327281).

18496442379247 is an equidigital number, since it uses as much as digits as its factorization.

18496442379247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377478415917 (or 377478415910 counting only the distinct ones).

The product of its digits is 585252864, while the sum is 70.

The spelling of 18496442379247 in words is "eighteen trillion, four hundred ninety-six billion, four hundred forty-two million, three hundred seventy-nine thousand, two hundred forty-seven".