620182673647 has 4 divisors (see below), whose sum is σ = 620189210520. Its totient is φ = 620176136776.

The previous prime is 620182673639. The next prime is 620182673657. The reversal of 620182673647 is 746376281026.

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 620182673647 - 2³ = 620182673639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620182673594 and 620182673603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620182673657) 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, 3123997 + ... + 3316582.

It is an arithmetic number, because the mean of its divisors is an integer number (155047302630).

Almost surely, 2^620182673647 is an apocalyptic number.

620182673647 is a deficient number, since it is larger than the sum of its proper divisors (6536873).

620182673647 is an equidigital number, since it uses as much as digits as its factorization.

620182673647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6536872.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 620182673647 in words is "six hundred twenty billion, one hundred eighty-two million, six hundred seventy-three thousand, six hundred forty-seven".