343506649851 has 8 divisors (see below), whose sum is σ = 508898740560. Its totient is φ = 229004433216.

The previous prime is 343506649847. The next prime is 343506649861. The reversal of 343506649851 is 158946605343.

343506649851 is a `hidden beast` number, since 3 + 43 + 5 + 0 + 66 + 498 + 51 = 666.

It is not a de Polignac number, because 343506649851 - 2² = 343506649847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (343506649861) 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, 6361234230 + ... + 6361234283.

It is an arithmetic number, because the mean of its divisors is an integer number (63612342570).

Almost surely, 2^343506649851 is an apocalyptic number.

343506649851 is a deficient number, since it is larger than the sum of its proper divisors (165392090709).

343506649851 is a wasteful number, since it uses less digits than its factorization.

343506649851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12722468522 (or 12722468516 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 343506649851 in words is "three hundred forty-three billion, five hundred six million, six hundred forty-nine thousand, eight hundred fifty-one".