343639326249 has 12 divisors (see below), whose sum is σ = 496405552500. Its totient is φ = 229075513344.

The previous prime is 343639326241. The next prime is 343639326271. The reversal of 343639326249 is 942623936343.

It is a happy number.

343639326249 is a `hidden beast` number, since 3 + 4 + 3 + 6 + 3 + 9 + 3 + 2 + 624 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 138036027024 + 205603299225 = 371532^2 + 453435^2 .

It is not a de Polignac number, because 343639326249 - 2³ = 343639326241 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 343639326195 and 343639326204.

It is not an unprimeable number, because it can be changed into a prime (343639326241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1321704 + ... + 1560185.

It is an arithmetic number, because the mean of its divisors is an integer number (41367129375).

Almost surely, 2^343639326249 is an apocalyptic number.

It is an amenable number.

343639326249 is a deficient number, since it is larger than the sum of its proper divisors (152766226251).

343639326249 is a wasteful number, since it uses less digits than its factorization.

343639326249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895144 (or 2895141 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 54.

The spelling of 343639326249 in words is "three hundred forty-three billion, six hundred thirty-nine million, three hundred twenty-six thousand, two hundred forty-nine".