4343501987449 has 3 divisors (see below), whose sum is σ = 4343504071557. Its totient is φ = 4343499903342.

The previous prime is 4343501987399. The next prime is 4343501987507. The reversal of 4343501987449 is 9447891053434.

It is a happy number.

The square root of 4343501987449 is 2084107.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 4343501987449 - 2⁹ = 4343501986937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4343501957449) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1042054 + ... + 3126160.

It is an arithmetic number, because the mean of its divisors is an integer number (1447834690519).

Almost surely, 2^{4343501987449} is an apocalyptic number.

4343501987449 is the 2084107-th square number.

4343501987449 is the 1042054-th centered octagonal number.

It is an amenable number.

4343501987449 is a deficient number, since it is larger than the sum of its proper divisors (2084108).

4343501987449 is an frugal number, since it uses more digits than its factorization.

4343501987449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168214 (or 2084107 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 61.

The spelling of 4343501987449 in words is "four trillion, three hundred forty-three billion, five hundred one million, nine hundred eighty-seven thousand, four hundred forty-nine".