6806770816 has 16 divisors (see below), whose sum is σ = 13560363990. Its totient is φ = 3403385344.

The previous prime is 6806770813. The next prime is 6806770837. The reversal of 6806770816 is 6180776086.

It can be written as a sum of positive squares in only one way, i.e., 6291662400 + 515108416 = 79320^2 + 22696^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6806770816.

It is not an unprimeable number, because it can be changed into a prime (6806770813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26588821 + ... + 26589076.

Almost surely, 2^6806770816 is an apocalyptic number.

It is an amenable number.

6806770816 is a deficient number, since it is larger than the sum of its proper divisors (6753593174).

6806770816 is an equidigital number, since it uses as much as digits as its factorization.

6806770816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53177911 (or 53177899 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 6806770816 is about 82503.1564002251. The cubic root of 6806770816 is about 1895.1650676427.

The spelling of 6806770816 in words is "six billion, eight hundred six million, seven hundred seventy thousand, eight hundred sixteen".