620804515743775 has 48 divisors (see below), whose sum is σ = 845946675947520. Its totient is φ = 448179312729600.

The previous prime is 620804515743773. The next prime is 620804515743779. The reversal of 620804515743775 is 577347515408026.

It is a happy number.

It is not a de Polignac number, because 620804515743775 - 2¹ = 620804515743773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620804515743773) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 256316482 + ... + 258727168.

It is an arithmetic number, because the mean of its divisors is an integer number (17623889082240).

Almost surely, 2^{620804515743775} is an apocalyptic number.

620804515743775 is a deficient number, since it is larger than the sum of its proper divisors (225142160203745).

620804515743775 is a wasteful number, since it uses less digits than its factorization.

620804515743775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417584 (or 2417579 counting only the distinct ones).

The product of its (nonzero) digits is 197568000, while the sum is 64.

The spelling of 620804515743775 in words is "six hundred twenty trillion, eight hundred four billion, five hundred fifteen million, seven hundred forty-three thousand, seven hundred seventy-five".