6820581792 has 24 divisors (see below), whose sum is σ = 17904027456. Its totient is φ = 2273527232.

The previous prime is 6820581787. The next prime is 6820581799. The reversal of 6820581792 is 2971850286.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (6820581799) 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, 35523768 + ... + 35523959.

It is an arithmetic number, because the mean of its divisors is an integer number (746001144).

Almost surely, 2^6820581792 is an apocalyptic number.

It is an amenable number.

6820581792 is an abundant number, since it is smaller than the sum of its proper divisors (11083445664).

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

6820581792 is a wasteful number, since it uses less digits than its factorization.

6820581792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71047740 (or 71047732 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 6820581792 is about 82586.8136690114. The cubic root of 6820581792 is about 1896.4459685500.

The spelling of 6820581792 in words is "six billion, eight hundred twenty million, five hundred eighty-one thousand, seven hundred ninety-two".