705722647242 has 32 divisors (see below), whose sum is σ = 1460205996480. Its totient is φ = 227115100800.

The previous prime is 705722647187. The next prime is 705722647247. The reversal of 705722647242 is 242746227507.

It is a super-3 number, since 3×705722647242³ (a number of 37 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 705722647191 and 705722647200.

It is not an unprimeable number, because it can be changed into a prime (705722647247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2911233 + ... + 3144315.

It is an arithmetic number, because the mean of its divisors is an integer number (45631437390).

Almost surely, 2^705722647242 is an apocalyptic number.

705722647242 is an abundant number, since it is smaller than the sum of its proper divisors (754483349238).

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

705722647242 is a wasteful number, since it uses less digits than its factorization.

705722647242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250518.

The product of its (nonzero) digits is 2634240, while the sum is 48.

The spelling of 705722647242 in words is "seven hundred five billion, seven hundred twenty-two million, six hundred forty-seven thousand, two hundred forty-two".