6812012864 has 28 divisors (see below), whose sum is σ = 13540156308. Its totient is φ = 3400320000.

The previous prime is 6812012827. The next prime is 6812012917. The reversal of 6812012864 is 4682102186.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3495174400 + 3316838464 = 59120^2 + 57592^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50087 + ... + 127014.

It is an arithmetic number, because the mean of its divisors is an integer number (483577011).

Almost surely, 2^6812012864 is an apocalyptic number.

6812012864 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6812012864 is a deficient number, since it is larger than the sum of its proper divisors (6728143444).

6812012864 is a wasteful number, since it uses less digits than its factorization.

6812012864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177714 (or 177704 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 6812012864 is about 82534.9190585415. The cubic root of 6812012864 is about 1895.6514459533.

The spelling of 6812012864 in words is "six billion, eight hundred twelve million, twelve thousand, eight hundred sixty-four".