505535353872 has 40 divisors (see below), whose sum is σ = 1374701403360. Its totient is φ = 159642743040.

The previous prime is 505535353867. The next prime is 505535353909. The reversal of 505535353872 is 278353535505.

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, 277156629 + ... + 277158452.

It is an arithmetic number, because the mean of its divisors is an integer number (34367535084).

Almost surely, 2^505535353872 is an apocalyptic number.

It is an amenable number.

505535353872 is an abundant number, since it is smaller than the sum of its proper divisors (869166049488).

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

505535353872 is a wasteful number, since it uses less digits than its factorization.

505535353872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554315111 (or 554315105 counting only the distinct ones).

The product of its (nonzero) digits is 9450000, while the sum is 51.

The spelling of 505535353872 in words is "five hundred five billion, five hundred thirty-five million, three hundred fifty-three thousand, eight hundred seventy-two".