513152544540 has 96 divisors (see below), whose sum is σ = 1513600704000. Its totient is φ = 129539872512.

The previous prime is 513152544539. The next prime is 513152544551. The reversal of 513152544540 is 45445251315.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1333026 + ... + 1674294.

It is an arithmetic number, because the mean of its divisors is an integer number (15766674000).

Almost surely, 2^513152544540 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 513152544540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (756800352000).

513152544540 is an abundant number, since it is smaller than the sum of its proper divisors (1000448159460).

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

513152544540 is a wasteful number, since it uses less digits than its factorization.

513152544540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342619 (or 342617 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

Adding to 513152544540 its reverse (45445251315), we get a palindrome (558597795855).

The spelling of 513152544540 in words is "five hundred thirteen billion, one hundred fifty-two million, five hundred forty-four thousand, five hundred forty".