620209482705 has 12 divisors (see below), whose sum is σ = 1075029770100. Its totient is φ = 330778390752.

The previous prime is 620209482643. The next prime is 620209482719. The reversal of 620209482705 is 507284902026.

It can be written as a sum of positive squares in 2 ways, for example, as 101481110721 + 518728371984 = 318561^2 + 720228^2 .

It is not a de Polignac number, because 620209482705 - 2²⁰ = 620208434129 is a prime.

It is a super-4 number, since 4×620209482705⁴ (a number of 48 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 13782432949 = 620209482705 / (6 + 2 + 0 + 2 + 0 + 9 + 4 + 8 + 2 + 7 + 0 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6891216430 + ... + 6891216519.

It is an arithmetic number, because the mean of its divisors is an integer number (89585814175).

Almost surely, 2^620209482705 is an apocalyptic number.

It is an amenable number.

620209482705 is a deficient number, since it is larger than the sum of its proper divisors (454820287395).

620209482705 is a wasteful number, since it uses less digits than its factorization.

620209482705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13782432960 (or 13782432957 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 620209482705 in words is "six hundred twenty billion, two hundred nine million, four hundred eighty-two thousand, seven hundred five".