6504154768 has 20 divisors (see below), whose sum is σ = 12808388668. Its totient is φ = 3198764160.

The previous prime is 6504154703. The next prime is 6504154777. The reversal of 6504154768 is 8674514056.

It can be written as a sum of positive squares in 2 ways, for example, as 2583892224 + 3920262544 = 50832^2 + 62612^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3331071 + ... + 3333022.

Almost surely, 2^6504154768 is an apocalyptic number.

It is an amenable number.

6504154768 is a deficient number, since it is larger than the sum of its proper divisors (6304233900).

6504154768 is a wasteful number, since it uses less digits than its factorization.

6504154768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6664162 (or 6664156 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The square root of 6504154768 is about 80648.3401441096. The cubic root of 6504154768 is about 1866.6531275095.

The spelling of 6504154768 in words is "six billion, five hundred four million, one hundred fifty-four thousand, seven hundred sixty-eight".