620412641420 has 192 divisors, whose sum is σ = 1636737363072. Its totient is φ = 194058240000.

The previous prime is 620412641417. The next prime is 620412641447. The reversal of 620412641420 is 24146214026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4847450 + ... + 4973790.

It is an arithmetic number, because the mean of its divisors is an integer number (8524673766).

Almost surely, 2^620412641420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620412641420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (818368681536).

620412641420 is an abundant number, since it is smaller than the sum of its proper divisors (1016324721652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620412641420 is a wasteful number, since it uses less digits than its factorization.

620412641420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126492 (or 126490 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 620412641420 its reverse (24146214026), we get a palindrome (644558855446).

The spelling of 620412641420 in words is "six hundred twenty billion, four hundred twelve million, six hundred forty-one thousand, four hundred twenty".