2628556488 has 64 divisors (see below), whose sum is σ = 7333848000. Its totient is φ = 872309376.

The previous prime is 2628556487. The next prime is 2628556499. The reversal of 2628556488 is 8846558262.

It is a happy number.

2628556488 is a `hidden beast` number, since 2 + 6 + 2 + 8 + 556 + 4 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2628556481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22228 + ... + 75836.

It is an arithmetic number, because the mean of its divisors is an integer number (114591375).

Almost surely, 2^2628556488 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 2628556488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3666924000).

2628556488 is an abundant number, since it is smaller than the sum of its proper divisors (4705291512).

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

2628556488 is a wasteful number, since it uses less digits than its factorization.

2628556488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53851 (or 53841 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 54.

The square root of 2628556488 is about 51269.4498507640. The cubic root of 2628556488 is about 1380.0847963017.

The spelling of 2628556488 in words is "two billion, six hundred twenty-eight million, five hundred fifty-six thousand, four hundred eighty-eight".