6920391006 has 80 divisors (see below), whose sum is σ = 15801215760. Its totient is φ = 2263282560.

The previous prime is 6920391001. The next prime is 6920391007. The reversal of 6920391006 is 6001930296.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6920391001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3048840 + ... + 3051108.

It is an arithmetic number, because the mean of its divisors is an integer number (197515197).

Almost surely, 2^6920391006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6920391006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7900607880).

6920391006 is an abundant number, since it is smaller than the sum of its proper divisors (8880824754).

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

6920391006 is a wasteful number, since it uses less digits than its factorization.

6920391006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631 (or 2622 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 6920391006 is about 83188.8875151002. The cubic root of 6920391006 is about 1905.6517777190.

The spelling of 6920391006 in words is "six billion, nine hundred twenty million, three hundred ninety-one thousand, six".