620185385285 has 16 divisors (see below), whose sum is σ = 753774873600. Its totient is φ = 489782232576.

The previous prime is 620185385243. The next prime is 620185385353. The reversal of 620185385285 is 582583581026.

It is a cyclic number.

It is not a de Polignac number, because 620185385285 - 2⁶ = 620185385221 is a prime.

It is a super-2 number, since 2×620185385285² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2171957 + ... + 2440853.

It is an arithmetic number, because the mean of its divisors is an integer number (47110929600).

Almost surely, 2^620185385285 is an apocalyptic number.

It is an amenable number.

620185385285 is a deficient number, since it is larger than the sum of its proper divisors (133589488315).

620185385285 is a wasteful number, since it uses less digits than its factorization.

620185385285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274820.

The product of its (nonzero) digits is 4608000, while the sum is 53.

The spelling of 620185385285 in words is "six hundred twenty billion, one hundred eighty-five million, three hundred eighty-five thousand, two hundred eighty-five".