620608327385 has 4 divisors (see below), whose sum is σ = 744729992868. Its totient is φ = 496486661904.

The previous prime is 620608327337. The next prime is 620608327403. The reversal of 620608327385 is 583723806026.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583723806026 = 2 ⋅291861903013.

It can be written as a sum of positive squares in 2 ways, for example, as 188791119001 + 431817208384 = 434501^2 + 657128^2 .

It is a cyclic number.

It is not a de Polignac number, because 620608327385 - 2²⁴ = 620591550169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62060832734 + ... + 62060832743.

It is an arithmetic number, because the mean of its divisors is an integer number (186182498217).

Almost surely, 2^620608327385 is an apocalyptic number.

It is an amenable number.

620608327385 is a deficient number, since it is larger than the sum of its proper divisors (124121665483).

620608327385 is a wasteful number, since it uses less digits than its factorization.

620608327385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124121665482.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 620608327385 in words is "six hundred twenty billion, six hundred eight million, three hundred twenty-seven thousand, three hundred eighty-five".