505316386838 has 16 divisors (see below), whose sum is σ = 764389400064. Its totient is φ = 250526039400.

The previous prime is 505316386823. The next prime is 505316386867. The reversal of 505316386838 is 838683613505.

It is a super-2 number, since 2×505316386838² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1364270 + ... + 1694657.

It is an arithmetic number, because the mean of its divisors is an integer number (47774337504).

Almost surely, 2^505316386838 is an apocalyptic number.

505316386838 is a deficient number, since it is larger than the sum of its proper divisors (259073013226).

505316386838 is a wasteful number, since it uses less digits than its factorization.

505316386838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059627.

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 505316386838 in words is "five hundred five billion, three hundred sixteen million, three hundred eighty-six thousand, eight hundred thirty-eight".