512454542120 has 128 divisors (see below), whose sum is σ = 1225747015200. Its totient is φ = 192450134016.

The previous prime is 512454542099. The next prime is 512454542177. The reversal of 512454542120 is 21245454215.

It can be written as a sum of positive squares in 16 ways, for example, as 109861754116 + 402592788004 = 331454^2 + 634502^2 .

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, 118156592 + ... + 118160928.

Almost surely, 2^512454542120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512454542120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (612873507600).

512454542120 is an abundant number, since it is smaller than the sum of its proper divisors (713292473080).

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

512454542120 is a wasteful number, since it uses less digits than its factorization.

512454542120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7167 (or 7163 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 512454542120 its reverse (21245454215), we get a palindrome (533699996335).

The spelling of 512454542120 in words is "five hundred twelve billion, four hundred fifty-four million, five hundred forty-two thousand, one hundred twenty".