2280919681 has 4 divisors (see below), whose sum is σ = 2281446832. Its totient is φ = 2280392532.

The previous prime is 2280919673. The next prime is 2280919757. The reversal of 2280919681 is 1869190822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2280919681 - 2³ = 2280919673 is a prime.

It is a super-2 number, since 2×2280919681² = 10405189182346283522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2280919661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257031 + ... + 265756.

It is an arithmetic number, because the mean of its divisors is an integer number (570361708).

Almost surely, 2^2280919681 is an apocalyptic number.

It is an amenable number.

2280919681 is a deficient number, since it is larger than the sum of its proper divisors (527151).

2280919681 is an equidigital number, since it uses as much as digits as its factorization.

2280919681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527150.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 2280919681 is about 47758.9748738392. The cubic root of 2280919681 is about 1316.3458164384.

The spelling of 2280919681 in words is "two billion, two hundred eighty million, nine hundred nineteen thousand, six hundred eighty-one".