6513443045 has 4 divisors (see below), whose sum is σ = 7816131660. Its totient is φ = 5210754432.

The previous prime is 6513443023. The next prime is 6513443047. The reversal of 6513443045 is 5403443156.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3055767841 + 3457675204 = 55279^2 + 58802^2 .

It is a cyclic number.

It is not a de Polignac number, because 6513443045 - 2¹² = 6513438949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6513442996 and 6513443014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6513443047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651344300 + ... + 651344309.

It is an arithmetic number, because the mean of its divisors is an integer number (1954032915).

Almost surely, 2^6513443045 is an apocalyptic number.

It is an amenable number.

6513443045 is a deficient number, since it is larger than the sum of its proper divisors (1302688615).

6513443045 is a wasteful number, since it uses less digits than its factorization.

6513443045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302688614.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 6513443045 is about 80705.9046476774. The cubic root of 6513443045 is about 1867.5412646711.

The spelling of 6513443045 in words is "six billion, five hundred thirteen million, four hundred forty-three thousand, forty-five".