679538611905 has 8 divisors (see below), whose sum is σ = 1087261779072. Its totient is φ = 362420593008.

The previous prime is 679538611903. The next prime is 679538611907. The reversal of 679538611905 is 509116835976.

679538611905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (679538611903) and next prime (679538611907).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 679538611905 - 2¹ = 679538611903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (679538611901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22651287049 + ... + 22651287078.

It is an arithmetic number, because the mean of its divisors is an integer number (135907722384).

Almost surely, 2^679538611905 is an apocalyptic number.

It is an amenable number.

679538611905 is a deficient number, since it is larger than the sum of its proper divisors (407723167167).

679538611905 is a wasteful number, since it uses less digits than its factorization.

679538611905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45302574135.

The product of its (nonzero) digits is 12247200, while the sum is 60.

The spelling of 679538611905 in words is "six hundred seventy-nine billion, five hundred thirty-eight million, six hundred eleven thousand, nine hundred five".