2281788751 has 4 divisors (see below), whose sum is σ = 2489224104. Its totient is φ = 2074353400.

The previous prime is 2281788749. The next prime is 2281788763. The reversal of 2281788751 is 1578871822.

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 2281788751 - 2¹ = 2281788749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2281788695 and 2281788704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281788781) 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, 103717660 + ... + 103717681.

It is an arithmetic number, because the mean of its divisors is an integer number (622306026).

Almost surely, 2^2281788751 is an apocalyptic number.

2281788751 is a deficient number, since it is larger than the sum of its proper divisors (207435353).

2281788751 is a wasteful number, since it uses less digits than its factorization.

2281788751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207435352.

The product of its digits is 501760, while the sum is 49.

The square root of 2281788751 is about 47768.0725066440. The cubic root of 2281788751 is about 1316.5129787465.

The spelling of 2281788751 in words is "two billion, two hundred eighty-one million, seven hundred eighty-eight thousand, seven hundred fifty-one".