513729838788 has 48 divisors (see below), whose sum is σ = 1228046025024. Its totient is φ = 167052136960.

The previous prime is 513729838759. The next prime is 513729838799. The reversal of 513729838788 is 887838927315.

It is a super-2 number, since 2×513729838788² (a number of 24 digits) contains 22 as substring.

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, 6641431 + ... + 6718337.

It is an arithmetic number, because the mean of its divisors is an integer number (25584292188).

Almost surely, 2^513729838788 is an apocalyptic number.

It is an amenable number.

513729838788 is an abundant number, since it is smaller than the sum of its proper divisors (714316186236).

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

513729838788 is a wasteful number, since it uses less digits than its factorization.

513729838788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90532 (or 90530 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 69.

The spelling of 513729838788 in words is "five hundred thirteen billion, seven hundred twenty-nine million, eight hundred thirty-eight thousand, seven hundred eighty-eight".