344834425387 has 4 divisors (see below), whose sum is σ = 350487448816. Its totient is φ = 339181401960.

The previous prime is 344834425333. The next prime is 344834425409. The reversal of 344834425387 is 783524438443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783524438443 = 2011 ⋅389619313.

It is a cyclic number.

It is not a de Polignac number, because 344834425387 - 2⁷ = 344834425259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344834425487) 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, 2826511623 + ... + 2826511744.

It is an arithmetic number, because the mean of its divisors is an integer number (87621862204).

Almost surely, 2^344834425387 is an apocalyptic number.

344834425387 is a deficient number, since it is larger than the sum of its proper divisors (5653023429).

344834425387 is an equidigital number, since it uses as much as digits as its factorization.

344834425387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5653023428.

The product of its digits is 30965760, while the sum is 55.

The spelling of 344834425387 in words is "three hundred forty-four billion, eight hundred thirty-four million, four hundred twenty-five thousand, three hundred eighty-seven".