344418389499 has 16 divisors (see below), whose sum is σ = 476686494720. Its totient is φ = 220964030880.

The previous prime is 344418389489. The next prime is 344418389503. The reversal of 344418389499 is 994983814443.

It is not a de Polignac number, because 344418389499 - 2⁹ = 344418388987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (344418389449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10328112 + ... + 10361405.

It is an arithmetic number, because the mean of its divisors is an integer number (29792905920).

Almost surely, 2^344418389499 is an apocalyptic number.

344418389499 is a deficient number, since it is larger than the sum of its proper divisors (132268105221).

344418389499 is a wasteful number, since it uses less digits than its factorization.

344418389499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20689730.

The product of its digits is 107495424, while the sum is 66.

The spelling of 344418389499 in words is "three hundred forty-four billion, four hundred eighteen million, three hundred eighty-nine thousand, four hundred ninety-nine".