6840579072 has 88 divisors (see below), whose sum is σ = 18677679552. Its totient is φ = 2224537600.

The previous prime is 6840579059. The next prime is 6840579077. The reversal of 6840579072 is 2709750486.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6840579077) 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, 98797 + ... + 153107.

Almost surely, 2^6840579072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6840579072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9338839776).

6840579072 is an abundant number, since it is smaller than the sum of its proper divisors (11837100480).

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

6840579072 is a wasteful number, since it uses less digits than its factorization.

6840579072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54375 (or 54357 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 6840579072 is about 82707.7932966416. The cubic root of 6840579072 is about 1898.2975583177.

The spelling of 6840579072 in words is "six billion, eight hundred forty million, five hundred seventy-nine thousand, seventy-two".