6542788804 has 6 divisors (see below), whose sum is σ = 11449880414. Its totient is φ = 3271394400.

The previous prime is 6542788799. The next prime is 6542788829. The reversal of 6542788804 is 4088872456.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6541574400 + 1214404 = 80880^2 + 1102^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817848597 + ... + 817848604.

Almost surely, 2^6542788804 is an apocalyptic number.

It is an amenable number.

6542788804 is a deficient number, since it is larger than the sum of its proper divisors (4907091610).

6542788804 is a wasteful number, since it uses less digits than its factorization.

6542788804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635697205 (or 1635697203 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 52.

The square root of 6542788804 is about 80887.5070947300. The cubic root of 6542788804 is about 1870.3417454287.

The spelling of 6542788804 in words is "six billion, five hundred forty-two million, seven hundred eighty-eight thousand, eight hundred four".