705608722668 has 24 divisors (see below), whose sum is σ = 1718003847168. Its totient is φ = 224976694096.

The previous prime is 705608722631. The next prime is 705608722699. The reversal of 705608722668 is 866227806507.

It is a happy 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, 1278276396 + ... + 1278276947.

It is an arithmetic number, because the mean of its divisors is an integer number (71583493632).

Almost surely, 2^705608722668 is an apocalyptic number.

It is an amenable number.

705608722668 is an abundant number, since it is smaller than the sum of its proper divisors (1012395124500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

705608722668 is a wasteful number, since it uses less digits than its factorization.

705608722668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556553373 (or 2556553371 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 705608722668 in words is "seven hundred five billion, six hundred eight million, seven hundred twenty-two thousand, six hundred sixty-eight".