718011820 has 24 divisors (see below), whose sum is σ = 1512394128. Its totient is φ = 286334400.

The previous prime is 718011799. The next prime is 718011821. The reversal of 718011820 is 28110817.

It is not an unprimeable number, because it can be changed into a prime (718011821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47611 + ... + 60850.

It is an arithmetic number, because the mean of its divisors is an integer number (63016422).

Almost surely, 2^718011820 is an apocalyptic number.

It is an amenable number.

718011820 is an abundant number, since it is smaller than the sum of its proper divisors (794382308).

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

718011820 is a wasteful number, since it uses less digits than its factorization.

718011820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108801 (or 108799 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 28.

The square root of 718011820 is about 26795.7425722819. The cubic root of 718011820 is about 895.4552036644.

The spelling of 718011820 in words is "seven hundred eighteen million, eleven thousand, eight hundred twenty".