346689727986643 has 4 divisors (see below), whose sum is σ = 367083241397640. Its totient is φ = 326296214575648.

The previous prime is 346689727986607. The next prime is 346689727986647.

346689727986643 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 346689727986643 - 2¹⁷ = 346689727855571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (346689727986647) 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, 10196756705473 + ... + 10196756705506.

It is an arithmetic number, because the mean of its divisors is an integer number (91770810349410).

Almost surely, 2^{346689727986643} is an apocalyptic number.

346689727986643 is a deficient number, since it is larger than the sum of its proper divisors (20393513410997).

346689727986643 is a wasteful number, since it uses less digits than its factorization.

346689727986643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20393513410996.

The product of its digits is 94810963968, while the sum is 88.

The spelling of 346689727986643 in words is "three hundred forty-six trillion, six hundred eighty-nine billion, seven hundred twenty-seven million, nine hundred eighty-six thousand, six hundred forty-three".