6812915652 has 72 divisors (see below), whose sum is σ = 18916148160. Its totient is φ = 2057901120.

The previous prime is 6812915647. The next prime is 6812915653. The reversal of 6812915652 is 2565192186.

6812915652 is a `hidden beast` number, since 6 + 81 + 2 + 9 + 1 + 565 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6812915598 and 6812915607.

It is not an unprimeable number, because it can be changed into a prime (6812915653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200799 + ... + 232262.

It is an arithmetic number, because the mean of its divisors is an integer number (262724280).

Almost surely, 2^6812915652 is an apocalyptic number.

It is an amenable number.

6812915652 is an abundant number, since it is smaller than the sum of its proper divisors (12103232508).

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

6812915652 is a wasteful number, since it uses less digits than its factorization.

6812915652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433113 (or 433108 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 6812915652 is about 82540.3880049034. The cubic root of 6812915652 is about 1895.7351850680.

The spelling of 6812915652 in words is "six billion, eight hundred twelve million, nine hundred fifteen thousand, six hundred fifty-two".