513440475380 has 96 divisors (see below), whose sum is σ = 1274364413952. Its totient is φ = 170042457600.

The previous prime is 513440475341. The next prime is 513440475389. The reversal of 513440475380 is 83574044315.

It is a happy number.

It is a super-2 number, since 2×513440475380² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513440475389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2238602 + ... + 2457278.

It is an arithmetic number, because the mean of its divisors is an integer number (13274629312).

Almost surely, 2^513440475380 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 513440475380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637182206976).

513440475380 is an abundant number, since it is smaller than the sum of its proper divisors (760923938572).

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

513440475380 is a wasteful number, since it uses less digits than its factorization.

513440475380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219265 (or 219263 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 513440475380 in words is "five hundred thirteen billion, four hundred forty million, four hundred seventy-five thousand, three hundred eighty".