620835840000 has 840 divisors, whose sum is σ = 2328712386000. Its totient is φ = 165224448000.

The previous prime is 620835839929. The next prime is 620835840019. The reversal of 620835840000 is 48538026.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1244159751 + ... + 1244160249.

It is an arithmetic number, because the mean of its divisors is an integer number (2772276650).

Almost surely, 2^620835840000 is an apocalyptic number.

620835840000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620835840000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1164356193000).

620835840000 is an abundant number, since it is smaller than the sum of its proper divisors (1707876546000).

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

620835840000 is an frugal number, since it uses more digits than its factorization.

620835840000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 620835840000 in words is "six hundred twenty billion, eight hundred thirty-five million, eight hundred forty thousand".