6578734657 has 32 divisors (see below), whose sum is σ = 7606047744. Its totient is φ = 5634969600.

The previous prime is 6578734633. The next prime is 6578734693. The reversal of 6578734657 is 7564378756.

It is a cyclic number.

It is not a de Polignac number, because 6578734657 - 2²³ = 6570346049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6578734957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2474673 + ... + 2477329.

It is an arithmetic number, because the mean of its divisors is an integer number (237688992).

Almost surely, 2^6578734657 is an apocalyptic number.

It is an amenable number.

6578734657 is a deficient number, since it is larger than the sum of its proper divisors (1027313087).

6578734657 is a wasteful number, since it uses less digits than its factorization.

6578734657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889.

The product of its digits is 29635200, while the sum is 58.

The square root of 6578734657 is about 81109.3993135198. The cubic root of 6578734657 is about 1873.7606892578.

The spelling of 6578734657 in words is "six billion, five hundred seventy-eight million, seven hundred thirty-four thousand, six hundred fifty-seven".