706781056840 has 16 divisors (see below), whose sum is σ = 1590257377980. Its totient is φ = 282712422720.

The previous prime is 706781056823. The next prime is 706781056843. The reversal of 706781056840 is 48650187607.

706781056840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 680324733124 + 26456323716 = 824818^2 + 162654^2 .

It is not an unprimeable number, because it can be changed into a prime (706781056843) 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, 8834763171 + ... + 8834763250.

Almost surely, 2^706781056840 is an apocalyptic number.

It is an amenable number.

706781056840 is an abundant number, since it is smaller than the sum of its proper divisors (883476321140).

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

706781056840 is a wasteful number, since it uses less digits than its factorization.

706781056840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17669526432 (or 17669526428 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 706781056840 in words is "seven hundred six billion, seven hundred eighty-one million, fifty-six thousand, eight hundred forty".