620364336623 has 4 divisors (see below), whose sum is σ = 621249307848. Its totient is φ = 619479365400.

The previous prime is 620364336611. The next prime is 620364336643. The reversal of 620364336623 is 326633463026.

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 620364336623 - 2⁸ = 620364336367 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 (620364336643) 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, 442484561 + ... + 442485962.

It is an arithmetic number, because the mean of its divisors is an integer number (155312326962).

Almost surely, 2^620364336623 is an apocalyptic number.

620364336623 is a deficient number, since it is larger than the sum of its proper divisors (884971225).

620364336623 is an equidigital number, since it uses as much as digits as its factorization.

620364336623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884971224.

The product of its (nonzero) digits is 1679616, while the sum is 44.

Adding to 620364336623 its reverse (326633463026), we get a palindrome (946997799649).

The spelling of 620364336623 in words is "six hundred twenty billion, three hundred sixty-four million, three hundred thirty-six thousand, six hundred twenty-three".