486720646817 has 4 divisors (see below), whose sum is σ = 494699673876. Its totient is φ = 478741619760.

The previous prime is 486720646771. The next prime is 486720646829. The reversal of 486720646817 is 718646027684.

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 5301150481 + 481419496336 = 72809^2 + 693844^2 .

It is a cyclic number.

It is not a de Polignac number, because 486720646817 - 2³² = 482425679521 is a prime.

It is a super-3 number, since 3×486720646817³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (486720646117) 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, 3989513438 + ... + 3989513559.

It is an arithmetic number, because the mean of its divisors is an integer number (123674918469).

Almost surely, 2^486720646817 is an apocalyptic number.

It is an amenable number.

486720646817 is a deficient number, since it is larger than the sum of its proper divisors (7979027059).

486720646817 is an equidigital number, since it uses as much as digits as its factorization.

486720646817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7979027058.

The product of its (nonzero) digits is 21676032, while the sum is 59.

The spelling of 486720646817 in words is "four hundred eighty-six billion, seven hundred twenty million, six hundred forty-six thousand, eight hundred seventeen".