1716121280 has 56 divisors (see below), whose sum is σ = 4135812912. Its totient is φ = 678167552.

The previous prime is 1716121279. The next prime is 1716121289. The reversal of 1716121280 is 821216171.

It is not an unprimeable number, because it can be changed into a prime (1716121289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5747 + ... + 58866.

It is an arithmetic number, because the mean of its divisors is an integer number (73853802).

Almost surely, 2^1716121280 is an apocalyptic number.

1716121280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1716121280 is an abundant number, since it is smaller than the sum of its proper divisors (2419691632).

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

1716121280 is an equidigital number, since it uses as much as digits as its factorization.

1716121280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64713 (or 64703 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 1716121280 is about 41426.0941919462. The cubic root of 1716121280 is about 1197.2439713974.

The spelling of 1716121280 in words is "one billion, seven hundred sixteen million, one hundred twenty-one thousand, two hundred eighty".