6842646720 has 672 divisors, whose sum is σ = 30071129088. Its totient is φ = 1442230272.

The previous prime is 6842646697. The next prime is 6842646739. The reversal of 6842646720 is 276462486.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7075677 + ... + 7076643.

It is an arithmetic number, because the mean of its divisors is an integer number (44748704).

Almost surely, 2^6842646720 is an apocalyptic number.

6842646720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6842646720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15035564544).

6842646720 is an abundant number, since it is smaller than the sum of its proper divisors (23228482368).

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

6842646720 is a wasteful number, since it uses less digits than its factorization.

6842646720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The square root of 6842646720 is about 82720.2920691169. The cubic root of 6842646720 is about 1898.4888002050.

The spelling of 6842646720 in words is "six billion, eight hundred forty-two million, six hundred forty-six thousand, seven hundred twenty".