344948971639 has 4 divisors (see below), whose sum is σ = 351457442856. Its totient is φ = 338440500424.

The previous prime is 344948971613. The next prime is 344948971649. The reversal of 344948971639 is 936179849443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936179849443 = 6607 ⋅141695149.

It is a cyclic number.

It is not a de Polignac number, because 344948971639 - 2⁷ = 344948971511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344948971649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3254235529 + ... + 3254235634.

It is an arithmetic number, because the mean of its divisors is an integer number (87864360714).

Almost surely, 2^344948971639 is an apocalyptic number.

344948971639 is a deficient number, since it is larger than the sum of its proper divisors (6508471217).

344948971639 is an equidigital number, since it uses as much as digits as its factorization.

344948971639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6508471216.

The product of its digits is 141087744, while the sum is 67.

The spelling of 344948971639 in words is "three hundred forty-four billion, nine hundred forty-eight million, nine hundred seventy-one thousand, six hundred thirty-nine".