679471493238 has 12 divisors (see below), whose sum is σ = 1472188235388. Its totient is φ = 226490497740.

The previous prime is 679471493237. The next prime is 679471493249. The reversal of 679471493238 is 832394174976.

679471493238 is a `hidden beast` number, since 6 + 79 + 4 + 71 + 493 + 2 + 3 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679471493237) 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 5 ways as a sum of consecutive naturals, for example, 18874208128 + ... + 18874208163.

It is an arithmetic number, because the mean of its divisors is an integer number (122682352949).

Almost surely, 2^679471493238 is an apocalyptic number.

679471493238 is an abundant number, since it is smaller than the sum of its proper divisors (792716742150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679471493238 is a wasteful number, since it uses less digits than its factorization.

679471493238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37748416299 (or 37748416296 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The spelling of 679471493238 in words is "six hundred seventy-nine billion, four hundred seventy-one million, four hundred ninety-three thousand, two hundred thirty-eight".