6853687572 has 12 divisors (see below), whose sum is σ = 15991937696. Its totient is φ = 2284562520.

The previous prime is 6853687549. The next prime is 6853687579. The reversal of 6853687572 is 2757863586.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6853687579) 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, 285570304 + ... + 285570327.

Almost surely, 2^6853687572 is an apocalyptic number.

It is an amenable number.

6853687572 is an abundant number, since it is smaller than the sum of its proper divisors (9138250124).

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

6853687572 is a wasteful number, since it uses less digits than its factorization.

6853687572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571140638 (or 571140636 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 57.

The square root of 6853687572 is about 82787.0012260379. The cubic root of 6853687572 is about 1899.5093444029.

The spelling of 6853687572 in words is "six billion, eight hundred fifty-three million, six hundred eighty-seven thousand, five hundred seventy-two".