247006486805693 has 4 divisors (see below), whose sum is σ = 247009924159068. Its totient is φ = 247003049452320.

The previous prime is 247006486805681. The next prime is 247006486805707. The reversal of 247006486805693 is 396508684600742.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6224635786084 + 240781851019609 = 2494922^2 + 15517147^2 .

It is a cyclic number.

It is not a de Polignac number, because 247006486805693 - 2²⁸ = 247006218370237 is a prime.

It is a super-2 number, since 2×247006486805693² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247006486805633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1718568896 + ... + 1718712617.

It is an arithmetic number, because the mean of its divisors is an integer number (61752481039767).

Almost surely, 2^{247006486805693} is an apocalyptic number.

It is an amenable number.

247006486805693 is a deficient number, since it is larger than the sum of its proper divisors (3437353375).

247006486805693 is an equidigital number, since it uses as much as digits as its factorization.

247006486805693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3437353374.

The product of its (nonzero) digits is 418037760, while the sum is 68.

The spelling of 247006486805693 in words is "two hundred forty-seven trillion, six billion, four hundred eighty-six million, eight hundred five thousand, six hundred ninety-three".