1679885680 has 120 divisors (see below), whose sum is σ = 4327093584. Its totient is φ = 601497600.

The previous prime is 1679885663. The next prime is 1679885693. The reversal of 1679885680 is 865889761.

It is a congruent number.

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, 6970360 + ... + 6970600.

Almost surely, 2^1679885680 is an apocalyptic number.

1679885680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1679885680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2163546792).

1679885680 is an abundant number, since it is smaller than the sum of its proper divisors (2647207904).

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

1679885680 is a wasteful number, since it uses less digits than its factorization.

1679885680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 58.

The square root of 1679885680 is about 40986.4084789092. The cubic root of 1679885680 is about 1188.7574252919.

The spelling of 1679885680 in words is "one billion, six hundred seventy-nine million, eight hundred eighty-five thousand, six hundred eighty".