620849754728 has 48 divisors (see below), whose sum is σ = 1377849950880. Its totient is φ = 256903327296.

The previous prime is 620849754697. The next prime is 620849754761. The reversal of 620849754728 is 827457948026.

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 11 ways as a sum of consecutive naturals, for example, 6544226 + ... + 6638417.

It is an arithmetic number, because the mean of its divisors is an integer number (28705207310).

Almost surely, 2^620849754728 is an apocalyptic number.

It is an amenable number.

620849754728 is an abundant number, since it is smaller than the sum of its proper divisors (757000196152).

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

620849754728 is a wasteful number, since it uses less digits than its factorization.

620849754728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13182714 (or 13182681 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 62.

The spelling of 620849754728 in words is "six hundred twenty billion, eight hundred forty-nine million, seven hundred fifty-four thousand, seven hundred twenty-eight".