344312611266 has 64 divisors (see below), whose sum is σ = 754604323200. Its totient is φ = 104092217856.

The previous prime is 344312611261. The next prime is 344312611387. The reversal of 344312611266 is 662116213443.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (344312611261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1948230 + ... + 2117598.

It is an arithmetic number, because the mean of its divisors is an integer number (11790692550).

Almost surely, 2^344312611266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 344312611266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377302161600).

344312611266 is an abundant number, since it is smaller than the sum of its proper divisors (410291711934).

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

344312611266 is a wasteful number, since it uses less digits than its factorization.

344312611266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169843.

The product of its digits is 124416, while the sum is 39.

The spelling of 344312611266 in words is "three hundred forty-four billion, three hundred twelve million, six hundred eleven thousand, two hundred sixty-six".