516471780 has 96 divisors (see below), whose sum is σ = 1628540928. Its totient is φ = 121161600.

The previous prime is 516471731. The next prime is 516471797. The reversal of 516471780 is 87174615.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7839 + ... + 33081.

It is an arithmetic number, because the mean of its divisors is an integer number (16963968).

Almost surely, 2^516471780 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 516471780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (814270464).

516471780 is an abundant number, since it is smaller than the sum of its proper divisors (1112069148).

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

516471780 is a wasteful number, since it uses less digits than its factorization.

516471780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25297 (or 25295 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 516471780 is about 22726.0154888621. The cubic root of 516471780 is about 802.3223041893.

The spelling of 516471780 in words is "five hundred sixteen million, four hundred seventy-one thousand, seven hundred eighty".