2628815827 has 4 divisors (see below), whose sum is σ = 2867799096. Its totient is φ = 2389832560.

The previous prime is 2628815821. The next prime is 2628815863. The reversal of 2628815827 is 7285188262.

2628815827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2628815827 - 2³¹ = 481332179 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2628815821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119491618 + ... + 119491639.

It is an arithmetic number, because the mean of its divisors is an integer number (716949774).

Almost surely, 2^2628815827 is an apocalyptic number.

2628815827 is a deficient number, since it is larger than the sum of its proper divisors (238983269).

2628815827 is a wasteful number, since it uses less digits than its factorization.

2628815827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238983268.

The product of its digits is 860160, while the sum is 49.

The square root of 2628815827 is about 51271.9789651229. The cubic root of 2628815827 is about 1380.1301821808.

The spelling of 2628815827 in words is "two billion, six hundred twenty-eight million, eight hundred fifteen thousand, eight hundred twenty-seven".