1688315911564 has 12 divisors (see below), whose sum is σ = 3034405625104. Its totient is φ = 821342875824.

The previous prime is 1688315911489. The next prime is 1688315911573. The reversal of 1688315911564 is 4651195138861.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1688315911499 and 1688315911508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5703769824 + ... + 5703770119.

Almost surely, 2^{1688315911564} is an apocalyptic number.

It is an amenable number.

1688315911564 is a deficient number, since it is larger than the sum of its proper divisors (1346089713540).

1688315911564 is a wasteful number, since it uses less digits than its factorization.

1688315911564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11407539984 (or 11407539982 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 58.

The spelling of 1688315911564 in words is "one trillion, six hundred eighty-eight billion, three hundred fifteen million, nine hundred eleven thousand, five hundred sixty-four".