515271712270 has 64 divisors (see below), whose sum is σ = 1083296332800. Its totient is φ = 176390775456.

The previous prime is 515271712211. The next prime is 515271712271. The reversal of 515271712270 is 72217172515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515271712271) by changing a digit.

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, 2103117 + ... + 2335303.

It is an arithmetic number, because the mean of its divisors is an integer number (16926505200).

Almost surely, 2^515271712270 is an apocalyptic number.

515271712270 is an abundant number, since it is smaller than the sum of its proper divisors (568024620530).

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

515271712270 is a wasteful number, since it uses less digits than its factorization.

515271712270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232862 (or 232848 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 40.

Adding to 515271712270 its reverse (72217172515), we get a palindrome (587488884785).

The spelling of 515271712270 in words is "five hundred fifteen billion, two hundred seventy-one million, seven hundred twelve thousand, two hundred seventy".