344858775678 has 96 divisors (see below), whose sum is σ = 797953796640. Its totient is φ = 107261706240.

The previous prime is 344858775649. The next prime is 344858775689. The reversal of 344858775678 is 876577858443.

344858775678 is a `hidden beast` number, since 3 + 4 + 4 + 8 + 58 + 7 + 7 + 567 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

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, 48781128 + ... + 48788196.

It is an arithmetic number, because the mean of its divisors is an integer number (8312018715).

Almost surely, 2^344858775678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344858775678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398976898320).

344858775678 is an abundant number, since it is smaller than the sum of its proper divisors (453095020962).

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

344858775678 is a wasteful number, since it uses less digits than its factorization.

344858775678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8442 (or 8439 counting only the distinct ones).

The product of its digits is 1264435200, while the sum is 72.

It can be divided in two parts, 344858775 and 678, that added together give a triangular number (344859453 = T₂₆₂₆₂).

The spelling of 344858775678 in words is "three hundred forty-four billion, eight hundred fifty-eight million, seven hundred seventy-five thousand, six hundred seventy-eight".