6809346547650 has 288 divisors, whose sum is σ = 19566496235520. Its totient is φ = 1693974522240.

The previous prime is 6809346547609. The next prime is 6809346547687. The reversal of 6809346547650 is 567456439086.

6809346547650 is a `hidden beast` number, since 6 + 8 + 0 + 9 + 34 + 6 + 547 + 6 + 50 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 77508649 + ... + 77596451.

It is an arithmetic number, because the mean of its divisors is an integer number (67939223040).

Almost surely, 2^{6809346547650} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6809346547650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9783248117760).

6809346547650 is an abundant number, since it is smaller than the sum of its proper divisors (12757149687870).

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

6809346547650 is a wasteful number, since it uses less digits than its factorization.

6809346547650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88030 (or 88022 counting only the distinct ones).

The product of its (nonzero) digits is 130636800, while the sum is 63.

The spelling of 6809346547650 in words is "six trillion, eight hundred nine billion, three hundred forty-six million, five hundred forty-seven thousand, six hundred fifty".