705489312722 has 8 divisors (see below), whose sum is σ = 1061845689996. Its totient is φ = 351540749392.

The previous prime is 705489312713. The next prime is 705489312733. The reversal of 705489312722 is 227213984507.

It can be written as a sum of positive squares in 2 ways, for example, as 702145119481 + 3344193241 = 837941^2 + 57829^2 .

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

It is a super-2 number, since 2×705489312722² (a number of 24 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 3 ways as a sum of consecutive naturals, for example, 601952753 + ... + 601953924.

Almost surely, 2^705489312722 is an apocalyptic number.

705489312722 is a deficient number, since it is larger than the sum of its proper divisors (356356377274).

705489312722 is a wasteful number, since it uses less digits than its factorization.

705489312722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203906972.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 705489312722 in words is "seven hundred five billion, four hundred eighty-nine million, three hundred twelve thousand, seven hundred twenty-two".