705722650991 has 8 divisors (see below), whose sum is σ = 720777999360. Its totient is φ = 690668968248.

The previous prime is 705722650973. The next prime is 705722651003. The reversal of 705722650991 is 199056227507.

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 705722650991 - 2²⁶ = 705655542127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705712650991) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 459470 + ... + 1273796.

It is an arithmetic number, because the mean of its divisors is an integer number (90097249920).

Almost surely, 2^705722650991 is an apocalyptic number.

705722650991 is a deficient number, since it is larger than the sum of its proper divisors (15055348369).

705722650991 is a wasteful number, since it uses less digits than its factorization.

705722650991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832813.

The product of its (nonzero) digits is 2381400, while the sum is 53.

The spelling of 705722650991 in words is "seven hundred five billion, seven hundred twenty-two million, six hundred fifty thousand, nine hundred ninety-one".