487261636013 has 4 divisors (see below), whose sum is σ = 487863937980. Its totient is φ = 486659334048.

The previous prime is 487261635989. The next prime is 487261636019. The reversal of 487261636013 is 310636162784.

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 345646398889 + 141615237124 = 587917^2 + 376318^2 .

It is a cyclic number.

It is not a de Polignac number, because 487261636013 - 2¹² = 487261631917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487261636019) 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, 301149770 + ... + 301151387.

It is an arithmetic number, because the mean of its divisors is an integer number (121965984495).

Almost surely, 2^487261636013 is an apocalyptic number.

It is an amenable number.

487261636013 is a deficient number, since it is larger than the sum of its proper divisors (602301967).

487261636013 is an equidigital number, since it uses as much as digits as its factorization.

487261636013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602301966.

The product of its (nonzero) digits is 870912, while the sum is 47.

Adding to 487261636013 its reverse (310636162784), we get a palindrome (797897798797).

The spelling of 487261636013 in words is "four hundred eighty-seven billion, two hundred sixty-one million, six hundred thirty-six thousand, thirteen".