505389164039 has 32 divisors (see below), whose sum is σ = 534225229824. Its totient is φ = 477588545280.

The previous prime is 505389164023. The next prime is 505389164051. The reversal of 505389164039 is 930461983505.

It is a cyclic number.

It is not a de Polignac number, because 505389164039 - 2⁴ = 505389164023 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 (505389164939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137593907 + ... + 137597579.

It is an arithmetic number, because the mean of its divisors is an integer number (16694538432).

Almost surely, 2^505389164039 is an apocalyptic number.

505389164039 is a deficient number, since it is larger than the sum of its proper divisors (28836065785).

505389164039 is a wasteful number, since it uses less digits than its factorization.

505389164039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4527.

The product of its (nonzero) digits is 3499200, while the sum is 53.

The spelling of 505389164039 in words is "five hundred five billion, three hundred eighty-nine million, one hundred sixty-four thousand, thirty-nine".