501720427064303 has 4 divisors (see below), whose sum is σ = 501721353346080. Its totient is φ = 501719500782528.

The previous prime is 501720427064287. The next prime is 501720427064309. The reversal of 501720427064303 is 303460724027105.

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

It is a cyclic number.

It is not a de Polignac number, because 501720427064303 - 2⁴ = 501720427064287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501720427064309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462327938 + ... + 463411871.

It is an arithmetic number, because the mean of its divisors is an integer number (125430338336520).

Almost surely, 2^{501720427064303} is an apocalyptic number.

501720427064303 is a deficient number, since it is larger than the sum of its proper divisors (926281777).

501720427064303 is an equidigital number, since it uses as much as digits as its factorization.

501720427064303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926281776.

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 501720427064303 in words is "five hundred one trillion, seven hundred twenty billion, four hundred twenty-seven million, sixty-four thousand, three hundred three".