679538611906 has 48 divisors (see below), whose sum is σ = 1286887996800. Its totient is φ = 263424744000.

The previous prime is 679538611903. The next prime is 679538611907. The reversal of 679538611906 is 609116835976.

679538611906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×679538611906² (a number of 24 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 670795 + ... + 1345006.

It is an arithmetic number, because the mean of its divisors is an integer number (26810166600).

Almost surely, 2^679538611906 is an apocalyptic number.

679538611906 is a deficient number, since it is larger than the sum of its proper divisors (607349384894).

679538611906 is a wasteful number, since it uses less digits than its factorization.

679538611906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016031 (or 2016020 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 679538611906 in words is "six hundred seventy-nine billion, five hundred thirty-eight million, six hundred eleven thousand, nine hundred six".