718374806705 has 8 divisors (see below), whose sum is σ = 862061168232. Its totient is φ = 574692245248.

The previous prime is 718374806693. The next prime is 718374806759. The reversal of 718374806705 is 507608473817.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5581285264 + 712793521441 = 74708^2 + 844271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 718374806705 - 2¹⁸ = 718374544561 is a prime.

It is a super-2 number, since 2×718374806705² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 516104 + ... + 1305033.

It is an arithmetic number, because the mean of its divisors is an integer number (107757646029).

Almost surely, 2^718374806705 is an apocalyptic number.

It is an amenable number.

718374806705 is a deficient number, since it is larger than the sum of its proper divisors (143686361527).

718374806705 is a wasteful number, since it uses less digits than its factorization.

718374806705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900035.

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 718374806705 in words is "seven hundred eighteen billion, three hundred seventy-four million, eight hundred six thousand, seven hundred five".