515313404243 has 8 divisors (see below), whose sum is σ = 562172963760. Its totient is φ = 468455992480.

The previous prime is 515313404233. The next prime is 515313404317. The reversal of 515313404243 is 342404313515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-515313404243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (515313404233) 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, 13028 + ... + 1015281.

It is an arithmetic number, because the mean of its divisors is an integer number (70271620470).

Almost surely, 2^515313404243 is an apocalyptic number.

515313404243 is a deficient number, since it is larger than the sum of its proper divisors (46859559517).

515313404243 is a wasteful number, since it uses less digits than its factorization.

515313404243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073877.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 515313404243 its reverse (342404313515), we get a palindrome (857717717758).

The spelling of 515313404243 in words is "five hundred fifteen billion, three hundred thirteen million, four hundred four thousand, two hundred forty-three".