705438666745 has 8 divisors (see below), whose sum is σ = 864537600384. Its totient is φ = 552343466544.

The previous prime is 705438666721. The next prime is 705438666817. The reversal of 705438666745 is 547666834507.

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 705438666745 - 2¹⁷ = 705438535673 is a prime.

It is a Duffinian 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, 1500933099 + ... + 1500933568.

It is an arithmetic number, because the mean of its divisors is an integer number (108067200048).

Almost surely, 2^705438666745 is an apocalyptic number.

It is an amenable number.

705438666745 is a deficient number, since it is larger than the sum of its proper divisors (159098933639).

705438666745 is a wasteful number, since it uses less digits than its factorization.

705438666745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001866719.

The product of its (nonzero) digits is 101606400, while the sum is 61.

The spelling of 705438666745 in words is "seven hundred five billion, four hundred thirty-eight million, six hundred sixty-six thousand, seven hundred forty-five".