1688814912 has 28 divisors (see below), whose sum is σ = 4468323296. Its totient is φ = 562938240.

The previous prime is 1688814899. The next prime is 1688814937. The reversal of 1688814912 is 2194188861.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4397764 + ... + 4398147.

Almost surely, 2^1688814912 is an apocalyptic number.

1688814912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1688814912 is an abundant number, since it is smaller than the sum of its proper divisors (2779508384).

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

1688814912 is an equidigital number, since it uses as much as digits as its factorization.

1688814912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8795926 (or 8795916 counting only the distinct ones).

The product of its digits is 221184, while the sum is 48.

The square root of 1688814912 is about 41095.1932955668. The cubic root of 1688814912 is about 1190.8599372402.

The spelling of 1688814912 in words is "one billion, six hundred eighty-eight million, eight hundred fourteen thousand, nine hundred twelve".