705725615745 has 12 divisors (see below), whose sum is σ = 1223257734036. Its totient is φ = 376386995040.

The previous prime is 705725615723. The next prime is 705725615773. The reversal of 705725615745 is 547516527507.

705725615745 is a `hidden beast` number, since 7 + 0 + 5 + 7 + 2 + 5 + 61 + 574 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 84983327361 + 620742288384 = 291519^2 + 787872^2 .

It is not a de Polignac number, because 705725615745 - 2⁵ = 705725615713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 705725615691 and 705725615700.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7841395686 + ... + 7841395775.

It is an arithmetic number, because the mean of its divisors is an integer number (101938144503).

Almost surely, 2^705725615745 is an apocalyptic number.

It is an amenable number.

705725615745 is a deficient number, since it is larger than the sum of its proper divisors (517532118291).

705725615745 is a wasteful number, since it uses less digits than its factorization.

705725615745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15682791472 (or 15682791469 counting only the distinct ones).

The product of its (nonzero) digits is 10290000, while the sum is 54.

The spelling of 705725615745 in words is "seven hundred five billion, seven hundred twenty-five million, six hundred fifteen thousand, seven hundred forty-five".