2028611004251 has 4 divisors (see below), whose sum is σ = 2184658004592. Its totient is φ = 1872564003912.

The previous prime is 2028611004227. The next prime is 2028611004289. The reversal of 2028611004251 is 1524001168202.

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 2028611004251 - 2⁶ = 2028611004187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2028611004451) 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, 78023500151 + ... + 78023500176.

It is an arithmetic number, because the mean of its divisors is an integer number (546164501148).

Almost surely, 2^{2028611004251} is an apocalyptic number.

2028611004251 is a deficient number, since it is larger than the sum of its proper divisors (156047000341).

2028611004251 is a wasteful number, since it uses less digits than its factorization.

2028611004251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156047000340.

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 2028611004251 in words is "two trillion, twenty-eight billion, six hundred eleven million, four thousand, two hundred fifty-one".