620005637000 has 64 divisors (see below), whose sum is σ = 1452247758000. Its totient is φ = 247757030400.

The previous prime is 620005636997. The next prime is 620005637011. The reversal of 620005637000 is 736500026.

It can be written as a sum of positive squares in 8 ways, for example, as 13404545284 + 606601091716 = 115778^2 + 778846^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 706976 + ... + 1319024.

Almost surely, 2^620005637000 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 620005637000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (726123879000).

620005637000 is an abundant number, since it is smaller than the sum of its proper divisors (832242121000).

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

620005637000 is a wasteful number, since it uses less digits than its factorization.

620005637000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613083 (or 613069 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The spelling of 620005637000 in words is "six hundred twenty billion, five million, six hundred thirty-seven thousand".