513360026244 has 36 divisors (see below), whose sum is σ = 1397480072716. Its totient is φ = 157956931008.

The previous prime is 513360026239. The next prime is 513360026279. The reversal of 513360026244 is 442620063315.

513360026244 is a `hidden beast` number, since 5 + 1 + 3 + 3 + 600 + 2 + 6 + 2 + 44 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 316224026244 + 197136000000 = 562338^2 + 444000^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 513360026199 and 513360026208.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 548461099 + ... + 548462034.

Almost surely, 2^513360026244 is an apocalyptic number.

It is an amenable number.

513360026244 is an abundant number, since it is smaller than the sum of its proper divisors (884120046472).

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

513360026244 is a wasteful number, since it uses less digits than its factorization.

513360026244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096923156 (or 1096923151 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 513360026244 its reverse (442620063315), we get a palindrome (955980089559).

The spelling of 513360026244 in words is "five hundred thirteen billion, three hundred sixty million, twenty-six thousand, two hundred forty-four".