513156432820 has 12 divisors (see below), whose sum is σ = 1077628508964. Its totient is φ = 205262573120.

The previous prime is 513156432799. The next prime is 513156432839. The reversal of 513156432820 is 28234651315.

It can be written as a sum of positive squares in 2 ways, for example, as 59815463184 + 453340969636 = 244572^2 + 673306^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12828910801 + ... + 12828910840.

It is an arithmetic number, because the mean of its divisors is an integer number (89802375747).

Almost surely, 2^513156432820 is an apocalyptic number.

It is an amenable number.

513156432820 is an abundant number, since it is smaller than the sum of its proper divisors (564472076144).

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

513156432820 is a wasteful number, since it uses less digits than its factorization.

513156432820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25657821650 (or 25657821648 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 513156432820 in words is "five hundred thirteen billion, one hundred fifty-six million, four hundred thirty-two thousand, eight hundred twenty".