1688117693346 has 48 divisors (see below), whose sum is σ = 4250950142400. Its totient is φ = 474144434784.

The previous prime is 1688117693279. The next prime is 1688117693389. The reversal of 1688117693346 is 6433967118861.

1688117693346 is a `hidden beast` number, since 1 + 68 + 81 + 1 + 76 + 93 + 346 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113532901 + ... + 113547768.

It is an arithmetic number, because the mean of its divisors is an integer number (88561461300).

Almost surely, 2^{1688117693346} is an apocalyptic number.

1688117693346 is an abundant number, since it is smaller than the sum of its proper divisors (2562832449054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1688117693346 is a wasteful number, since it uses less digits than its factorization.

1688117693346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227080743 (or 227080740 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The spelling of 1688117693346 in words is "one trillion, six hundred eighty-eight billion, one hundred seventeen million, six hundred ninety-three thousand, three hundred forty-six".