513360026280 has 96 divisors (see below), whose sum is σ = 1668741258600. Its totient is φ = 136869654528.

The previous prime is 513360026279. The next prime is 513360026321. The reversal of 513360026280 is 82620063315.

It is a happy number.

513360026280 is a `hidden beast` number, since 5 + 1 + 3 + 3 + 600 + 26 + 28 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 471565130436 + 41794895844 = 686706^2 + 204438^2 .

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

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 23 ways as a sum of consecutive naturals, for example, 1772316 + ... + 2041524.

Almost surely, 2^513360026280 is an apocalyptic number.

It is an amenable number.

513360026280 is an abundant number, since it is smaller than the sum of its proper divisors (1155381232320).

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

513360026280 is a wasteful number, since it uses less digits than its factorization.

513360026280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274523 (or 274516 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 513360026280 its reverse (82620063315), we get a palindrome (595980089595).

The spelling of 513360026280 in words is "five hundred thirteen billion, three hundred sixty million, twenty-six thousand, two hundred eighty".