2028844551 has 4 divisors (see below), whose sum is σ = 2705126072. Its totient is φ = 1352563032.

The previous prime is 2028844523. The next prime is 2028844579. The reversal of 2028844551 is 1554488202.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (2028844523) and next prime (2028844579).

It is not a de Polignac number, because 2028844551 - 2¹¹ = 2028842503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028844501) 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, 338140756 + ... + 338140761.

It is an arithmetic number, because the mean of its divisors is an integer number (676281518).

Almost surely, 2^2028844551 is an apocalyptic number.

2028844551 is a deficient number, since it is larger than the sum of its proper divisors (676281521).

2028844551 is an equidigital number, since it uses as much as digits as its factorization.

2028844551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676281520.

The product of its (nonzero) digits is 102400, while the sum is 39.

The square root of 2028844551 is about 45042.6969774235. The cubic root of 2028844551 is about 1265.9491386868.

The spelling of 2028844551 in words is "two billion, twenty-eight million, eight hundred forty-four thousand, five hundred fifty-one".