2251382766 has 16 divisors (see below), whose sum is σ = 4504284624. Its totient is φ = 750207744.

The previous prime is 2251382759. The next prime is 2251382779. The reversal of 2251382766 is 6672831522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43555 + ... + 79998.

It is an arithmetic number, because the mean of its divisors is an integer number (281517789).

Almost surely, 2^2251382766 is an apocalyptic number.

2251382766 is an abundant number, since it is smaller than the sum of its proper divisors (2252901858).

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

2251382766 is a wasteful number, since it uses less digits than its factorization.

2251382766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126595.

The product of its digits is 241920, while the sum is 42.

The square root of 2251382766 is about 47448.7382972403. The cubic root of 2251382766 is about 1310.6390771032.

The spelling of 2251382766 in words is "two billion, two hundred fifty-one million, three hundred eighty-two thousand, seven hundred sixty-six".