512115345728 has 56 divisors (see below), whose sum is σ = 1162122566784. Its totient is φ = 219342297600.

The previous prime is 512115345727. The next prime is 512115345739. The reversal of 512115345728 is 827543511215.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512115345727) by changing a digit.

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, 373613 + ... + 1078803.

Almost surely, 2^512115345728 is an apocalyptic number.

It is an amenable number.

512115345728 is an abundant number, since it is smaller than the sum of its proper divisors (650007221056).

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

512115345728 is a wasteful number, since it uses less digits than its factorization.

512115345728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706831 (or 706821 counting only the distinct ones).

The product of its digits is 336000, while the sum is 44.

The spelling of 512115345728 in words is "five hundred twelve billion, one hundred fifteen million, three hundred forty-five thousand, seven hundred twenty-eight".