6813453512 has 32 divisors (see below), whose sum is σ = 13241819520. Its totient is φ = 3284466240.

The previous prime is 6813453509. The next prime is 6813453529. The reversal of 6813453512 is 2153543186.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110039 + ... + 160422.

It is an arithmetic number, because the mean of its divisors is an integer number (413806860).

Almost surely, 2^6813453512 is an apocalyptic number.

It is an amenable number.

6813453512 is a deficient number, since it is larger than the sum of its proper divisors (6428366008).

6813453512 is a wasteful number, since it uses less digits than its factorization.

6813453512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270581 (or 270577 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 6813453512 is about 82543.6461031375. The cubic root of 6813453512 is about 1895.7850713599.

Adding to 6813453512 its reverse (2153543186), we get a palindrome (8966996698).

The spelling of 6813453512 in words is "six billion, eight hundred thirteen million, four hundred fifty-three thousand, five hundred twelve".