344668571856 has 120 divisors (see below), whose sum is σ = 1103314107584. Its totient is φ = 98394393600.

The previous prime is 344668571839. The next prime is 344668571857. The reversal of 344668571856 is 658175866443.

344668571856 is a `hidden beast` number, since 3 + 4 + 4 + 6 + 6 + 8 + 571 + 8 + 56 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 344668571793 and 344668571802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344668571857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1068255 + ... + 1352961.

Almost surely, 2^344668571856 is an apocalyptic number.

344668571856 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344668571856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (551657053792).

344668571856 is an abundant number, since it is smaller than the sum of its proper divisors (758645535728).

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

344668571856 is a wasteful number, since it uses less digits than its factorization.

344668571856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285929 (or 285920 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 63.

The spelling of 344668571856 in words is "three hundred forty-four billion, six hundred sixty-eight million, five hundred seventy-one thousand, eight hundred fifty-six".