344407857019 has 8 divisors (see below), whose sum is σ = 380522236320. Its totient is φ = 310055154816.

The previous prime is 344407856987. The next prime is 344407857049. The reversal of 344407857019 is 910758704443.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 344407857019 - 2⁵ = 344407856987 is a prime.

It is a super-2 number, since 2×344407857019² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (344407857049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440418864 + ... + 440419645.

It is an arithmetic number, because the mean of its divisors is an integer number (47565279540).

Almost surely, 2^344407857019 is an apocalyptic number.

344407857019 is a deficient number, since it is larger than the sum of its proper divisors (36114379301).

344407857019 is a wasteful number, since it uses less digits than its factorization.

344407857019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880838549.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 344407857019 in words is "three hundred forty-four billion, four hundred seven million, eight hundred fifty-seven thousand, nineteen".