1686345699358 has 32 divisors (see below), whose sum is σ = 2643479388000. Its totient is φ = 805795482240.

The previous prime is 1686345699349. The next prime is 1686345699391. The reversal of 1686345699358 is 8539965436861.

It is a super-2 number, since 2×1686345699358² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6001308 + ... + 6276016.

It is an arithmetic number, because the mean of its divisors is an integer number (82608730875).

Almost surely, 2^{1686345699358} is an apocalyptic number.

1686345699358 is a deficient number, since it is larger than the sum of its proper divisors (957133688642).

1686345699358 is a wasteful number, since it uses less digits than its factorization.

1686345699358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275820.

The product of its digits is 1007769600, while the sum is 73.

The spelling of 1686345699358 in words is "one trillion, six hundred eighty-six billion, three hundred forty-five million, six hundred ninety-nine thousand, three hundred fifty-eight".