620544241513 has 8 divisors (see below), whose sum is σ = 709443421632. Its totient is φ = 531707562096.

The previous prime is 620544241501. The next prime is 620544241573. The reversal of 620544241513 is 315142445026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620544241513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620544241573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15603895 + ... + 15643612.

It is an arithmetic number, because the mean of its divisors is an integer number (88680427704).

Almost surely, 2^620544241513 is an apocalyptic number.

It is an amenable number.

620544241513 is a deficient number, since it is larger than the sum of its proper divisors (88899180119).

620544241513 is a wasteful number, since it uses less digits than its factorization.

620544241513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31250351.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 620544241513 its reverse (315142445026), we get a palindrome (935686686539).

The spelling of 620544241513 in words is "six hundred twenty billion, five hundred forty-four million, two hundred forty-one thousand, five hundred thirteen".