5065386631421 has 4 divisors (see below), whose sum is σ = 5073414186144. Its totient is φ = 5057359076700.

The previous prime is 5065386631387. The next prime is 5065386631453. The reversal of 5065386631421 is 1241366835605.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5065386631421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5065386631421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5065386631321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4013776415 + ... + 4013777676.

It is an arithmetic number, because the mean of its divisors is an integer number (1268353546536).

Almost surely, 2^{5065386631421} is an apocalyptic number.

It is an amenable number.

5065386631421 is a deficient number, since it is larger than the sum of its proper divisors (8027554723).

5065386631421 is an equidigital number, since it uses as much as digits as its factorization.

5065386631421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8027554722.

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 5065386631421 in words is "five trillion, sixty-five billion, three hundred eighty-six million, six hundred thirty-one thousand, four hundred twenty-one".