628777858760 has 32 divisors (see below), whose sum is σ = 1417455296640. Its totient is φ = 251030234304.

The previous prime is 628777858651. The next prime is 628777858769. The reversal of 628777858760 is 67858777826.

It is not an unprimeable number, because it can be changed into a prime (628777858769) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15007232 + ... + 15049071.

It is an arithmetic number, because the mean of its divisors is an integer number (44295478020).

Almost surely, 2^628777858760 is an apocalyptic number.

It is an amenable number.

628777858760 is an abundant number, since it is smaller than the sum of its proper divisors (788677437880).

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

628777858760 is a wasteful number, since it uses less digits than its factorization.

628777858760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30056837 (or 30056833 counting only the distinct ones).

The product of its (nonzero) digits is 442552320, while the sum is 71.

The spelling of 628777858760 in words is "six hundred twenty-eight billion, seven hundred seventy-seven million, eight hundred fifty-eight thousand, seven hundred sixty".