6780505064 has 32 divisors (see below), whose sum is σ = 13284328320. Its totient is φ = 3238420416.

The previous prime is 6780505049. The next prime is 6780505079. The reversal of 6780505064 is 4605050876.

It is an interprime number because it is at equal distance from previous prime (6780505049) and next prime (6780505079).

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, 111914 + ... + 161510.

It is an arithmetic number, because the mean of its divisors is an integer number (415135260).

Almost surely, 2^6780505064 is an apocalyptic number.

It is an amenable number.

6780505064 is a deficient number, since it is larger than the sum of its proper divisors (6503823256).

6780505064 is a wasteful number, since it uses less digits than its factorization.

6780505064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50369 (or 50365 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 6780505064 is about 82343.8222576533. The cubic root of 6780505064 is about 1892.7242577589.

The spelling of 6780505064 in words is "six billion, seven hundred eighty million, five hundred five thousand, sixty-four".