512245443540 has 24 divisors (see below), whose sum is σ = 1434287242080. Its totient is φ = 136598784928.

The previous prime is 512245443469. The next prime is 512245443653. The reversal of 512245443540 is 45344542215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4268711970 + ... + 4268712089.

It is an arithmetic number, because the mean of its divisors is an integer number (59761968420).

Almost surely, 2^512245443540 is an apocalyptic number.

It is an amenable number.

512245443540 is an abundant number, since it is smaller than the sum of its proper divisors (922041798540).

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

512245443540 is a wasteful number, since it uses less digits than its factorization.

512245443540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8537424071 (or 8537424069 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 512245443540 its reverse (45344542215), we get a palindrome (557589985755).

The spelling of 512245443540 in words is "five hundred twelve billion, two hundred forty-five million, four hundred forty-three thousand, five hundred forty".