679366771146 has 96 divisors (see below), whose sum is σ = 1761375732480. Its totient is φ = 185031551232.

The previous prime is 679366771141. The next prime is 679366771147. The reversal of 679366771146 is 641177663976.

679366771146 is a `hidden beast` number, since 67 + 9 + 366 + 7 + 71 + 146 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (679366771141) 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 47 ways as a sum of consecutive naturals, for example, 449070 + ... + 1249158.

It is an arithmetic number, because the mean of its divisors is an integer number (18347663880).

Almost surely, 2^679366771146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679366771146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (880687866240).

679366771146 is an abundant number, since it is smaller than the sum of its proper divisors (1082008961334).

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

679366771146 is a wasteful number, since it uses less digits than its factorization.

679366771146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800420 (or 800417 counting only the distinct ones).

The product of its digits is 48009024, while the sum is 63.

The spelling of 679366771146 in words is "six hundred seventy-nine billion, three hundred sixty-six million, seven hundred seventy-one thousand, one hundred forty-six".