6520428670 has 32 divisors (see below), whose sum is σ = 13483708416. Its totient is φ = 2223866400.

The previous prime is 6520428667. The next prime is 6520428703. The reversal of 6520428670 is 768240256.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230476 + ... + 257215.

It is an arithmetic number, because the mean of its divisors is an integer number (421365888).

Almost surely, 2^6520428670 is an apocalyptic number.

6520428670 is an abundant number, since it is smaller than the sum of its proper divisors (6963279746).

6520428670 is a wasteful number, since it uses less digits than its factorization.

6520428670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487896.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 6520428670 is about 80749.1713270173. The cubic root of 6520428670 is about 1868.2086680571.

The spelling of 6520428670 in words is "six billion, five hundred twenty million, four hundred twenty-eight thousand, six hundred seventy".