513044240424 has 128 divisors (see below), whose sum is σ = 1343637123840. Its totient is φ = 163069949952.

The previous prime is 513044240413. The next prime is 513044240431. The reversal of 513044240424 is 424042440315.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45505252 + ... + 45516524.

It is an arithmetic number, because the mean of its divisors is an integer number (10497165030).

Almost surely, 2^513044240424 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 513044240424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (671818561920).

513044240424 is an abundant number, since it is smaller than the sum of its proper divisors (830592883416).

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

513044240424 is a wasteful number, since it uses less digits than its factorization.

513044240424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12339 (or 12335 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 513044240424 its reverse (424042440315), we get a palindrome (937086680739).

The spelling of 513044240424 in words is "five hundred thirteen billion, forty-four million, two hundred forty thousand, four hundred twenty-four".