679440443058 has 96 divisors (see below), whose sum is σ = 1646976240000. Its totient is φ = 208690079616.

The previous prime is 679440443051. The next prime is 679440443089. The reversal of 679440443058 is 850344044976.

679440443058 is a `hidden beast` number, since 67 + 94 + 4 + 0 + 443 + 0 + 58 = 666.

It is a super-3 number, since 3×679440443058³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 679440442995 and 679440443013.

It is not an unprimeable number, because it can be changed into a prime (679440443051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3500443 + ... + 3689441.

It is an arithmetic number, because the mean of its divisors is an integer number (17156002500).

Almost surely, 2^679440443058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679440443058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (823488120000).

679440443058 is an abundant number, since it is smaller than the sum of its proper divisors (967535796942).

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

679440443058 is a wasteful number, since it uses less digits than its factorization.

679440443058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189598 (or 189586 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 679440443058 in words is "six hundred seventy-nine billion, four hundred forty million, four hundred forty-three thousand, fifty-eight".