512131911424 has 144 divisors (see below), whose sum is σ = 1194826381056. Its totient is φ = 214552166400.

The previous prime is 512131911391. The next prime is 512131911463. The reversal of 512131911424 is 424119131215.

It is a self number, because there is not a number n which added to its sum of digits gives 512131911424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15712104 + ... + 15744664.

It is an arithmetic number, because the mean of its divisors is an integer number (8297405424).

Almost surely, 2^512131911424 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 512131911424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597413190528).

512131911424 is an abundant number, since it is smaller than the sum of its proper divisors (682694469632).

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

512131911424 is a wasteful number, since it uses less digits than its factorization.

512131911424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32782 (or 32768 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The spelling of 512131911424 in words is "five hundred twelve billion, one hundred thirty-one million, nine hundred eleven thousand, four hundred twenty-four".