515429228356 has 81 divisors (see below), whose sum is σ = 1107808210719. Its totient is φ = 209194480656.

The previous prime is 515429228333. The next prime is 515429228359. The reversal of 515429228356 is 653822924515.

The square root of 515429228356 is 717934.

It is a perfect power (a square), and thus also a powerful number.

It is not an unprimeable number, because it can be changed into a prime (515429228359) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 190969095 + ... + 190971793.

Almost surely, 2^515429228356 is an apocalyptic number.

515429228356 is the 717934-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 515429228356

515429228356 is an abundant number, since it is smaller than the sum of its proper divisors (592378982363).

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

515429228356 is an equidigital number, since it uses as much as digits as its factorization.

515429228356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454 (or 2727 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 52.

The spelling of 515429228356 in words is "five hundred fifteen billion, four hundred twenty-nine million, two hundred twenty-eight thousand, three hundred fifty-six".