513202380673 has 8 divisors (see below), whose sum is σ = 514861237800. Its totient is φ = 511544328960.

The previous prime is 513202380671. The next prime is 513202380709. The reversal of 513202380673 is 376083202315.

It can be written as a sum of positive squares in 4 ways, for example, as 51253790449 + 461948590224 = 226393^2 + 679668^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 513202380673 - 2¹ = 513202380671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513202380671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088403 + ... + 1486951.

It is an arithmetic number, because the mean of its divisors is an integer number (64357654725).

Almost surely, 2^513202380673 is an apocalyptic number.

It is an amenable number.

513202380673 is a deficient number, since it is larger than the sum of its proper divisors (1658857127).

513202380673 is a wasteful number, since it uses less digits than its factorization.

513202380673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402707.

The product of its (nonzero) digits is 181440, while the sum is 40.

Adding to 513202380673 its reverse (376083202315), we get a palindrome (889285582988).

The spelling of 513202380673 in words is "five hundred thirteen billion, two hundred two million, three hundred eighty thousand, six hundred seventy-three".