716128278 has 64 divisors (see below), whose sum is σ = 1555276800. Its totient is φ = 219088800.

The previous prime is 716128277. The next prime is 716128313. The reversal of 716128278 is 872821617.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716128271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 680853 + ... + 681903.

It is an arithmetic number, because the mean of its divisors is an integer number (24301200).

Almost surely, 2^716128278 is an apocalyptic number.

716128278 is an abundant number, since it is smaller than the sum of its proper divisors (839148522).

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

716128278 is a wasteful number, since it uses less digits than its factorization.

716128278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257.

The product of its digits is 75264, while the sum is 42.

The square root of 716128278 is about 26760.5732001390. The cubic root of 716128278 is about 894.6715097566.

The spelling of 716128278 in words is "seven hundred sixteen million, one hundred twenty-eight thousand, two hundred seventy-eight".