4342642637309 has 4 divisors (see below), whose sum is σ = 4384804216416. Its totient is φ = 4300481058204.

The previous prime is 4342642637287. The next prime is 4342642637353. The reversal of 4342642637309 is 9037362462434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4342642637309 is a prime.

It is a super-2 number, since 2×4342642637309² (a number of 26 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 (4342642607309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21080789399 + ... + 21080789604.

It is an arithmetic number, because the mean of its divisors is an integer number (1096201054104).

Almost surely, 2^{4342642637309} is an apocalyptic number.

It is an amenable number.

4342642637309 is a deficient number, since it is larger than the sum of its proper divisors (42161579107).

4342642637309 is a wasteful number, since it uses less digits than its factorization.

4342642637309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42161579106.

The product of its (nonzero) digits is 15676416, while the sum is 53.

The spelling of 4342642637309 in words is "four trillion, three hundred forty-two billion, six hundred forty-two million, six hundred thirty-seven thousand, three hundred nine".