505212043542 has 16 divisors (see below), whose sum is σ = 1010668259520. Its totient is φ = 168363319112.

The previous prime is 505212043499. The next prime is 505212043559. The reversal of 505212043542 is 245340212505.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10146948 + ... + 10196615.

It is an arithmetic number, because the mean of its divisors is an integer number (63166766220).

Almost surely, 2^505212043542 is an apocalyptic number.

505212043542 is an abundant number, since it is smaller than the sum of its proper divisors (505456215978).

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

505212043542 is a wasteful number, since it uses less digits than its factorization.

505212043542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20347707.

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 505212043542 in words is "five hundred five billion, two hundred twelve million, forty-three thousand, five hundred forty-two".