343218614749 has 4 divisors (see below), whose sum is σ = 352494793564. Its totient is φ = 333942435936.

The previous prime is 343218614737. The next prime is 343218614759. The reversal of 343218614749 is 947416812343.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 947416812343 = 2293 ⋅413177851.

It can be written as a sum of positive squares in 2 ways, for example, as 217748223225 + 125470391524 = 466635^2 + 354218^2 .

It is a cyclic number.

It is not a de Polignac number, because 343218614749 - 2¹⁷ = 343218483677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343218614696 and 343218614705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343218614729) 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, 4638089352 + ... + 4638089425.

It is an arithmetic number, because the mean of its divisors is an integer number (88123698391).

Almost surely, 2^343218614749 is an apocalyptic number.

It is an amenable number.

343218614749 is a deficient number, since it is larger than the sum of its proper divisors (9276178815).

343218614749 is an equidigital number, since it uses as much as digits as its factorization.

343218614749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9276178814.

The product of its digits is 3483648, while the sum is 52.

The spelling of 343218614749 in words is "three hundred forty-three billion, two hundred eighteen million, six hundred fourteen thousand, seven hundred forty-nine".