705957313640 has 16 divisors (see below), whose sum is σ = 1588403955780. Its totient is φ = 282382925440.

The previous prime is 705957313627. The next prime is 705957313661. The reversal of 705957313640 is 46313759507.

705957313640 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 704568856996 + 1388456644 = 839386^2 + 37262^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8824466381 + ... + 8824466460.

Almost surely, 2^705957313640 is an apocalyptic number.

It is an amenable number.

705957313640 is an abundant number, since it is smaller than the sum of its proper divisors (882446642140).

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

705957313640 is a wasteful number, since it uses less digits than its factorization.

705957313640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17648932852 (or 17648932848 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 50.

The spelling of 705957313640 in words is "seven hundred five billion, nine hundred fifty-seven million, three hundred thirteen thousand, six hundred forty".