344407857017 has 8 divisors (see below), whose sum is σ = 393619234176. Its totient is φ = 295199043552.

The previous prime is 344407856987. The next prime is 344407857049. The reversal of 344407857017 is 710758704443.

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

It is a de Polignac number, because none of the positive numbers 2^k-344407857017 is a prime.

It is a super-2 number, since 2×344407857017² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (344407851017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343868 + ... + 898365.

It is an arithmetic number, because the mean of its divisors is an integer number (49202404272).

Almost surely, 2^344407857017 is an apocalyptic number.

It is an amenable number.

344407857017 is a deficient number, since it is larger than the sum of its proper divisors (49211377159).

344407857017 is a wasteful number, since it uses less digits than its factorization.

344407857017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281847.

The product of its (nonzero) digits is 2634240, while the sum is 50.

The spelling of 344407857017 in words is "three hundred forty-four billion, four hundred seven million, eight hundred fifty-seven thousand, seventeen".