515130315104 has 48 divisors (see below), whose sum is σ = 1031784586560. Its totient is φ = 253097948160.

The previous prime is 515130315103. The next prime is 515130315143. The reversal of 515130315104 is 401513031515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515130315103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1901132 + ... + 2155124.

It is an arithmetic number, because the mean of its divisors is an integer number (21495512220).

Almost surely, 2^515130315104 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 515130315104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515892293280).

515130315104 is an abundant number, since it is smaller than the sum of its proper divisors (516654271456).

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

515130315104 is a wasteful number, since it uses less digits than its factorization.

515130315104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255103 (or 255095 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 515130315104 its reverse (401513031515), we get a palindrome (916643346619).

The spelling of 515130315104 in words is "five hundred fifteen billion, one hundred thirty million, three hundred fifteen thousand, one hundred four".