505403643775 has 12 divisors (see below), whose sum is σ = 626763009600. Its totient is φ = 404282598080.

The previous prime is 505403643769. The next prime is 505403643809. The reversal of 505403643775 is 577346304505.

It is not a de Polignac number, because 505403643775 - 2¹¹ = 505403641727 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 750910 + ... + 1254859.

It is an arithmetic number, because the mean of its divisors is an integer number (52230250800).

Almost surely, 2^505403643775 is an apocalyptic number.

505403643775 is a deficient number, since it is larger than the sum of its proper divisors (121359365825).

505403643775 is a wasteful number, since it uses less digits than its factorization.

505403643775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015858 (or 2015853 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 49.

The spelling of 505403643775 in words is "five hundred five billion, four hundred three million, six hundred forty-three thousand, seven hundred seventy-five".