351686686667 has 8 divisors (see below), whose sum is σ = 359178541056. Its totient is φ = 344195213992.

The previous prime is 351686686657. The next prime is 351686686693. The reversal of 351686686667 is 766686686153.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351686686667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 351686686597 and 351686686606.

It is not an unprimeable number, because it can be changed into a prime (351686686657) 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, 2524838 + ... + 2660484.

It is an arithmetic number, because the mean of its divisors is an integer number (44897317632).

Almost surely, 2^351686686667 is an apocalyptic number.

351686686667 is a deficient number, since it is larger than the sum of its proper divisors (7491854389).

351686686667 is a wasteful number, since it uses less digits than its factorization.

351686686667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190857.

The product of its digits is 313528320, while the sum is 68.

The spelling of 351686686667 in words is "three hundred fifty-one billion, six hundred eighty-six million, six hundred eighty-six thousand, six hundred sixty-seven".