628021361280 has 256 divisors, whose sum is σ = 2024170611840. Its totient is φ = 165606604800.

The previous prime is 628021361243. The next prime is 628021361299. The reversal of 628021361280 is 82163120826.

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 31 ways as a sum of consecutive naturals, for example, 211953079 + ... + 211956041.

Almost surely, 2^628021361280 is an apocalyptic number.

628021361280 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 628021361280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1012085305920).

628021361280 is an abundant number, since it is smaller than the sum of its proper divisors (1396149250560).

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

628021361280 is a wasteful number, since it uses less digits than its factorization.

628021361280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179 (or 4167 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 628021361280 in words is "six hundred twenty-eight billion, twenty-one million, three hundred sixty-one thousand, two hundred eighty".