505204542444 has 96 divisors (see below), whose sum is σ = 1405008080896. Its totient is φ = 138247741440.

The previous prime is 505204542433. The next prime is 505204542457. The reversal of 505204542444 is 444245402505.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 747469 + ... + 1252644.

Almost surely, 2^505204542444 is an apocalyptic number.

It is an amenable number.

505204542444 is an abundant number, since it is smaller than the sum of its proper divisors (899803538452).

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

505204542444 is a wasteful number, since it uses less digits than its factorization.

505204542444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000255 (or 2000253 counting only the distinct ones).

The product of its (nonzero) digits is 512000, while the sum is 39.

Adding to 505204542444 its reverse (444245402505), we get a palindrome (949449944949).

The spelling of 505204542444 in words is "five hundred five billion, two hundred four million, five hundred forty-two thousand, four hundred forty-four".