538872184505 has 4 divisors (see below), whose sum is σ = 646646621412. Its totient is φ = 431097747600.

The previous prime is 538872184429. The next prime is 538872184511. The reversal of 538872184505 is 505481278835.

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

It can be written as a sum of positive squares in 2 ways, for example, as 118705055296 + 420167129209 = 344536^2 + 648203^2 .

It is not a de Polignac number, because 538872184505 - 2¹⁸ = 538871922361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53887218446 + ... + 53887218455.

It is an arithmetic number, because the mean of its divisors is an integer number (161661655353).

Almost surely, 2^538872184505 is an apocalyptic number.

It is an amenable number.

538872184505 is a deficient number, since it is larger than the sum of its proper divisors (107774436907).

538872184505 is a wasteful number, since it uses less digits than its factorization.

538872184505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107774436906.

The product of its (nonzero) digits is 10752000, while the sum is 56.

The spelling of 538872184505 in words is "five hundred thirty-eight billion, eight hundred seventy-two million, one hundred eighty-four thousand, five hundred five".