505154200234242 has 64 divisors (see below), whose sum is σ = 1103558063844096. Its totient is φ = 153215400545280.

The previous prime is 505154200234231. The next prime is 505154200234247. The reversal of 505154200234242 is 242432002451505.

It is a super-3 number, since 3×505154200234242³ (a number of 45 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 505154200234242.

It is not an unprimeable number, because it can be changed into a prime (505154200234247) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 15322734 + ... + 35285897.

It is an arithmetic number, because the mean of its divisors is an integer number (17243094747564).

Almost surely, 2^{505154200234242} is an apocalyptic number.

505154200234242 is an abundant number, since it is smaller than the sum of its proper divisors (598403863609854).

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

505154200234242 is a wasteful number, since it uses less digits than its factorization.

505154200234242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50610475.

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 505154200234242 its reverse (242432002451505), we get a palindrome (747586202685747).

The spelling of 505154200234242 in words is "five hundred five trillion, one hundred fifty-four billion, two hundred million, two hundred thirty-four thousand, two hundred forty-two".