505056273769890 has 48 divisors (see below), whose sum is σ = 1313392543372728. Its totient is φ = 134656418485248.

The previous prime is 505056273769867. The next prime is 505056273770047. The reversal of 505056273769890 is 98967372650505.

505056273769890 is a `hidden beast` number, since 5 + 0 + 50 + 562 + 7 + 3 + 7 + 6 + 9 + 8 + 9 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 503820087807969 + 1236185961921 = 22445937^2 + 1111839^2 .

It is a super-2 number, since 2×505056273769890² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 525653199 + ... + 526613138.

Almost surely, 2^{505056273769890} is an apocalyptic number.

505056273769890 is an abundant number, since it is smaller than the sum of its proper divisors (808336269602838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505056273769890 is a wasteful number, since it uses less digits than its factorization.

505056273769890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052271683 (or 1052271680 counting only the distinct ones).

The product of its (nonzero) digits is 857304000, while the sum is 72.

The spelling of 505056273769890 in words is "five hundred five trillion, fifty-six billion, two hundred seventy-three million, seven hundred sixty-nine thousand, eight hundred ninety".