505536766874 has 16 divisors (see below), whose sum is σ = 791395681320. Its totient is φ = 241892474880.

The previous prime is 505536766849. The next prime is 505536766907. The reversal of 505536766874 is 478667635505.

It can be written as a sum of positive squares in 4 ways, for example, as 205577907649 + 299958859225 = 453407^2 + 547685^2 .

It is a super-2 number, since 2×505536766874² (a number of 24 digits) contains 22 as substring.

It is a Curzon 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, 38560487 + ... + 38573594.

Almost surely, 2^505536766874 is an apocalyptic number.

505536766874 is a deficient number, since it is larger than the sum of its proper divisors (285858914446).

505536766874 is a wasteful number, since it uses less digits than its factorization.

505536766874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77134225.

The product of its (nonzero) digits is 127008000, while the sum is 62.

The spelling of 505536766874 in words is "five hundred five billion, five hundred thirty-six million, seven hundred sixty-six thousand, eight hundred seventy-four".