705261813280 has 24 divisors (see below), whose sum is σ = 1666181034252. Its totient is φ = 282104725248.

The previous prime is 705261813253. The next prime is 705261813283. The reversal of 705261813280 is 82318162507.

It can be written as a sum of positive squares in 2 ways, for example, as 689384805264 + 15877008016 = 830292^2 + 126004^2 .

It is not an unprimeable number, because it can be changed into a prime (705261813283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2203943007 + ... + 2203943326.

Almost surely, 2^705261813280 is an apocalyptic number.

It is an amenable number.

705261813280 is an abundant number, since it is smaller than the sum of its proper divisors (960919220972).

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

705261813280 is a wasteful number, since it uses less digits than its factorization.

705261813280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407886348 (or 4407886340 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

Adding to 705261813280 its reverse (82318162507), we get a palindrome (787579975787).

The spelling of 705261813280 in words is "seven hundred five billion, two hundred sixty-one million, eight hundred thirteen thousand, two hundred eighty".