718723642 has 32 divisors (see below), whose sum is σ = 1384572672. Its totient is φ = 271966464.

The previous prime is 718723627. The next prime is 718723651. The reversal of 718723642 is 246327817.

It is a junction number, because it is equal to n+sod(n) for n = 718723595 and 718723604.

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, 81663 + ... + 90034.

It is an arithmetic number, because the mean of its divisors is an integer number (43267896).

Almost surely, 2^718723642 is an apocalyptic number.

718723642 is a deficient number, since it is larger than the sum of its proper divisors (665849030).

718723642 is a wasteful number, since it uses less digits than its factorization.

718723642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171742.

The product of its digits is 112896, while the sum is 40.

The square root of 718723642 is about 26809.0216531674. The cubic root of 718723642 is about 895.7510178258.

The spelling of 718723642 in words is "seven hundred eighteen million, seven hundred twenty-three thousand, six hundred forty-two".