512415220342 has 4 divisors (see below), whose sum is σ = 768622830516. Its totient is φ = 256207610170.

The previous prime is 512415220319. The next prime is 512415220349. The reversal of 512415220342 is 243022514215.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512415220349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128103805084 + ... + 128103805087.

It is an arithmetic number, because the mean of its divisors is an integer number (192155707629).

Almost surely, 2^512415220342 is an apocalyptic number.

512415220342 is a deficient number, since it is larger than the sum of its proper divisors (256207610174).

512415220342 is a wasteful number, since it uses less digits than its factorization.

512415220342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256207610173.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 512415220342 its reverse (243022514215), we get a palindrome (755437734557).

The spelling of 512415220342 in words is "five hundred twelve billion, four hundred fifteen million, two hundred twenty thousand, three hundred forty-two".