690650325385 has 8 divisors (see below), whose sum is σ = 832219314696. Its totient is φ = 550227644160.

The previous prime is 690650325383. The next prime is 690650325419. The reversal of 690650325385 is 583523056096.

690650325385 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 4 ways, for example, as 26470964601 + 664179360784 = 162699^2 + 814972^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 690650325385 - 2¹ = 690650325383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690650325383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286575694 + ... + 286578103.

It is an arithmetic number, because the mean of its divisors is an integer number (104027414337).

Almost surely, 2^690650325385 is an apocalyptic number.

It is an amenable number.

690650325385 is a deficient number, since it is larger than the sum of its proper divisors (141568989311).

690650325385 is a wasteful number, since it uses less digits than its factorization.

690650325385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573154043.

The product of its (nonzero) digits is 5832000, while the sum is 52.

The spelling of 690650325385 in words is "six hundred ninety billion, six hundred fifty million, three hundred twenty-five thousand, three hundred eighty-five".