344511014420521 has 16 divisors (see below), whose sum is σ = 371255029657344. Its totient is φ = 317801750612544.

The previous prime is 344511014420473. The next prime is 344511014420641. The reversal of 344511014420521 is 125024410115443.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-344511014420521 is a prime.

It is a super-2 number, since 2×344511014420521² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344511014420921) 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, 669863556 + ... + 670377658.

It is an arithmetic number, because the mean of its divisors is an integer number (23203439353584).

Almost surely, 2^{344511014420521} is an apocalyptic number.

It is an amenable number.

344511014420521 is a deficient number, since it is larger than the sum of its proper divisors (26744015236823).

344511014420521 is a wasteful number, since it uses less digits than its factorization.

344511014420521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547800.

The product of its (nonzero) digits is 76800, while the sum is 37.

Adding to 344511014420521 its reverse (125024410115443), we get a palindrome (469535424535964).

The spelling of 344511014420521 in words is "three hundred forty-four trillion, five hundred eleven billion, fourteen million, four hundred twenty thousand, five hundred twenty-one".