718421438706 has 32 divisors (see below), whose sum is σ = 1451108044800. Its totient is φ = 237106556544.

The previous prime is 718421438687. The next prime is 718421438719. The reversal of 718421438706 is 607834124817.

It is a super-2 number, since 2×718421438706² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1003890 + ... + 1563533.

It is an arithmetic number, because the mean of its divisors is an integer number (45347126400).

Almost surely, 2^718421438706 is an apocalyptic number.

718421438706 is an abundant number, since it is smaller than the sum of its proper divisors (732686606094).

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

718421438706 is a wasteful number, since it uses less digits than its factorization.

718421438706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567890.

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 718421438706 in words is "seven hundred eighteen billion, four hundred twenty-one million, four hundred thirty-eight thousand, seven hundred six".