6909481292 has 48 divisors (see below), whose sum is σ = 14743669248. Its totient is φ = 2765717760.

The previous prime is 6909481291. The next prime is 6909481301. The reversal of 6909481292 is 2921849096.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6909481292.

It is not an unprimeable number, because it can be changed into a prime (6909481291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6953 + ... + 117759.

It is an arithmetic number, because the mean of its divisors is an integer number (307159776).

Almost surely, 2^6909481292 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 6909481292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7371834624).

6909481292 is an abundant number, since it is smaller than the sum of its proper divisors (7834187956).

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

6909481292 is a wasteful number, since it uses less digits than its factorization.

6909481292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110966 (or 110964 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 6909481292 is about 83123.2897087212. The cubic root of 6909481292 is about 1904.6498569527.

The spelling of 6909481292 in words is "six billion, nine hundred nine million, four hundred eighty-one thousand, two hundred ninety-two".