679458892878 has 36 divisors (see below), whose sum is σ = 1553721112008. Its totient is φ = 214565964120.

The previous prime is 679458892867. The next prime is 679458892901. The reversal of 679458892878 is 878298854976.

679458892878 is a `hidden beast` number, since 6 + 7 + 9 + 4 + 588 + 9 + 28 + 7 + 8 = 666.

It is a super-2 number, since 2×679458892878² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 679458892797 and 679458892806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 52275658 + ... + 52288653.

It is an arithmetic number, because the mean of its divisors is an integer number (43158919778).

Almost surely, 2^679458892878 is an apocalyptic number.

679458892878 is an abundant number, since it is smaller than the sum of its proper divisors (874262219130).

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

679458892878 is a wasteful number, since it uses less digits than its factorization.

679458892878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104564357 (or 104564335 counting only the distinct ones).

The product of its digits is 3901685760, while the sum is 81.

The spelling of 679458892878 in words is "six hundred seventy-nine billion, four hundred fifty-eight million, eight hundred ninety-two thousand, eight hundred seventy-eight".