679820485507 has 16 divisors (see below), whose sum is σ = 717617352960. Its totient is φ = 642227860512.

The previous prime is 679820485493. The next prime is 679820485517. The reversal of 679820485507 is 705584028976.

It is a cyclic number.

It is not a de Polignac number, because 679820485507 - 2¹⁵ = 679820452739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (679820485517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9729498 + ... + 9799120.

It is an arithmetic number, because the mean of its divisors is an integer number (44851084560).

Almost surely, 2^679820485507 is an apocalyptic number.

679820485507 is a deficient number, since it is larger than the sum of its proper divisors (37796867453).

679820485507 is a wasteful number, since it uses less digits than its factorization.

679820485507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71082.

The product of its (nonzero) digits is 33868800, while the sum is 61.

The spelling of 679820485507 in words is "six hundred seventy-nine billion, eight hundred twenty million, four hundred eighty-five thousand, five hundred seven".