4538166783863 has 4 divisors (see below), whose sum is σ = 4538673115128. Its totient is φ = 4537660452600.

The previous prime is 4538166783809. The next prime is 4538166783911. The reversal of 4538166783863 is 3683876618354.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4538166783863 - 2²² = 4538162589559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4538166783793 and 4538166783802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4538166743863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253152188 + ... + 253170113.

It is an arithmetic number, because the mean of its divisors is an integer number (1134668278782).

Almost surely, 2^{4538166783863} is an apocalyptic number.

4538166783863 is a deficient number, since it is larger than the sum of its proper divisors (506331265).

4538166783863 is an equidigital number, since it uses as much as digits as its factorization.

4538166783863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506331264.

The product of its digits is 418037760, while the sum is 68.

The spelling of 4538166783863 in words is "four trillion, five hundred thirty-eight billion, one hundred sixty-six million, seven hundred eighty-three thousand, eight hundred sixty-three".