344421515869 has 16 divisors (see below), whose sum is σ = 350952168448. Its totient is φ = 337961175552.

The previous prime is 344421515863. The next prime is 344421515909. The reversal of 344421515869 is 968515124443.

It is a cyclic number.

It is not a de Polignac number, because 344421515869 - 2²⁷ = 344287298141 is a prime.

It is a super-2 number, since 2×344421515869² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344421515863) 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 15 ways as a sum of consecutive naturals, for example, 7026604 + ... + 7075450.

It is an arithmetic number, because the mean of its divisors is an integer number (21934510528).

Almost surely, 2^344421515869 is an apocalyptic number.

It is an amenable number.

344421515869 is a deficient number, since it is larger than the sum of its proper divisors (6530652579).

344421515869 is a wasteful number, since it uses less digits than its factorization.

344421515869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49564.

The product of its digits is 4147200, while the sum is 52.

The spelling of 344421515869 in words is "three hundred forty-four billion, four hundred twenty-one million, five hundred fifteen thousand, eight hundred sixty-nine".