718128678 has 16 divisors (see below), whose sum is σ = 1498703616. Its totient is φ = 228968520.

The previous prime is 718128659. The next prime is 718128737. The reversal of 718128678 is 876821817.

718128678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2601778 + ... + 2602053.

It is an arithmetic number, because the mean of its divisors is an integer number (93668976).

Almost surely, 2^718128678 is an apocalyptic number.

718128678 is an abundant number, since it is smaller than the sum of its proper divisors (780574938).

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

718128678 is a wasteful number, since it uses less digits than its factorization.

718128678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5203859.

The product of its digits is 301056, while the sum is 48.

The square root of 718128678 is about 26797.9230165325. The cubic root of 718128678 is about 895.5037801293.

The spelling of 718128678 in words is "seven hundred eighteen million, one hundred twenty-eight thousand, six hundred seventy-eight".