6504934910859 has 128 divisors (see below), whose sum is σ = 12323649792000. Its totient is φ = 3361668065280.

The previous prime is 6504934910849. The next prime is 6504934910861. The reversal of 6504934910859 is 9580194394056.

6504934910859 is a `hidden beast` number, since 6 + 5 + 0 + 4 + 93 + 491 + 0 + 8 + 59 = 666.

It is not a de Polignac number, because 6504934910859 - 2¹¹ = 6504934908811 is a prime.

It is a super-2 number, since 2×6504934910859² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 6504934910796 and 6504934910805.

It is not an unprimeable number, because it can be changed into a prime (6504934910809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19495677 + ... + 19826529.

It is an arithmetic number, because the mean of its divisors is an integer number (96278514000).

Almost surely, 2^{6504934910859} is an apocalyptic number.

6504934910859 is a deficient number, since it is larger than the sum of its proper divisors (5818714881141).

6504934910859 is a wasteful number, since it uses less digits than its factorization.

6504934910859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331087 (or 331067 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 63.

The spelling of 6504934910859 in words is "six trillion, five hundred four billion, nine hundred thirty-four million, nine hundred ten thousand, eight hundred fifty-nine".