690093595935745 has 8 divisors (see below), whose sum is σ = 828116641227816. Its totient is φ = 552071992678656.

The previous prime is 690093595935743. The next prime is 690093595935761. The reversal of 690093595935745 is 547539595390096.

It can be written as a sum of positive squares in 4 ways, for example, as 186952268956401 + 503141326979344 = 13673049^2 + 22430812^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 690093595935745 - 2¹ = 690093595935743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690093595935743) 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, 359455642 + ... + 361370371.

It is an arithmetic number, because the mean of its divisors is an integer number (103514580153477).

Almost surely, 2^{690093595935745} is an apocalyptic number.

It is an amenable number.

690093595935745 is a deficient number, since it is larger than the sum of its proper divisors (138023045292071).

690093595935745 is a wasteful number, since it uses less digits than its factorization.

690093595935745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721017491.

The product of its (nonzero) digits is 6200145000, while the sum is 79.

The spelling of 690093595935745 in words is "six hundred ninety trillion, ninety-three billion, five hundred ninety-five million, nine hundred thirty-five thousand, seven hundred forty-five".