538917704505 has 48 divisors (see below), whose sum is σ = 971514785280. Its totient is φ = 276114593664.

The previous prime is 538917704491. The next prime is 538917704551. The reversal of 538917704505 is 505407719835.

538917704505 is a `hidden beast` number, since 5 + 38 + 91 + 7 + 70 + 450 + 5 = 666.

It is not a de Polignac number, because 538917704505 - 2¹⁴ = 538917688121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1917037 + ... + 2180106.

It is an arithmetic number, because the mean of its divisors is an integer number (20239891360).

Almost surely, 2^538917704505 is an apocalyptic number.

It is an amenable number.

538917704505 is a deficient number, since it is larger than the sum of its proper divisors (432597080775).

538917704505 is a wasteful number, since it uses less digits than its factorization.

538917704505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097270 (or 4097267 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 54.

The spelling of 538917704505 in words is "five hundred thirty-eight billion, nine hundred seventeen million, seven hundred four thousand, five hundred five".