513451471128 has 32 divisors (see below), whose sum is σ = 1283658941760. Its totient is φ = 171146455200.

The previous prime is 513451471097. The next prime is 513451471139. The reversal of 513451471128 is 821174154315.

It is a self number, because there is not a number n which added to its sum of digits gives 513451471128.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893103 + ... + 1350753.

It is an arithmetic number, because the mean of its divisors is an integer number (40114341930).

Almost surely, 2^513451471128 is an apocalyptic number.

It is an amenable number.

513451471128 is an abundant number, since it is smaller than the sum of its proper divisors (770207470632).

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

513451471128 is a wasteful number, since it uses less digits than its factorization.

513451471128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504407 (or 504403 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The spelling of 513451471128 in words is "five hundred thirteen billion, four hundred fifty-one million, four hundred seventy-one thousand, one hundred twenty-eight".