620621825780 has 48 divisors (see below), whose sum is σ = 1496619149760. Its totient is φ = 213802732800.

The previous prime is 620621825773. The next prime is 620621825819. The reversal of 620621825780 is 87528126026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74232881 + ... + 74241240.

It is an arithmetic number, because the mean of its divisors is an integer number (31179565620).

Almost surely, 2^620621825780 is an apocalyptic number.

It is an amenable number.

620621825780 is an abundant number, since it is smaller than the sum of its proper divisors (875997323980).

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

620621825780 is a wasteful number, since it uses less digits than its factorization.

620621825780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148474160 (or 148474158 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 620621825780 in words is "six hundred twenty billion, six hundred twenty-one million, eight hundred twenty-five thousand, seven hundred eighty".