6921067936 has 48 divisors (see below), whose sum is σ = 14144336640. Its totient is φ = 3330109440.

The previous prime is 6921067919. The next prime is 6921067943. The reversal of 6921067936 is 6397601296.

It is a self number, because there is not a number n which added to its sum of digits gives 6921067936.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158080 + ... + 197056.

It is an arithmetic number, because the mean of its divisors is an integer number (294673680).

Almost surely, 2^6921067936 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 6921067936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7072168320).

6921067936 is an abundant number, since it is smaller than the sum of its proper divisors (7223268704).

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

6921067936 is a wasteful number, since it uses less digits than its factorization.

6921067936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39197 (or 39189 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 49.

The square root of 6921067936 is about 83192.9560479732. The cubic root of 6921067936 is about 1905.7139105666.

The spelling of 6921067936 in words is "six billion, nine hundred twenty-one million, sixty-seven thousand, nine hundred thirty-six".