706777731640 has 32 divisors (see below), whose sum is σ = 1590284717280. Its totient is φ = 282704902272.

The previous prime is 706777731629. The next prime is 706777731659. The reversal of 706777731640 is 46137777607.

It is a congruent 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, 1949122 + ... + 2283118.

It is an arithmetic number, because the mean of its divisors is an integer number (49696397415).

Almost surely, 2^706777731640 is an apocalyptic number.

It is an amenable number.

706777731640 is an abundant number, since it is smaller than the sum of its proper divisors (883506985640).

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

706777731640 is a wasteful number, since it uses less digits than its factorization.

706777731640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386911 (or 386907 counting only the distinct ones).

The product of its (nonzero) digits is 7260624, while the sum is 55.

The spelling of 706777731640 in words is "seven hundred six billion, seven hundred seventy-seven million, seven hundred thirty-one thousand, six hundred forty".