2281722819 has 8 divisors (see below), whose sum is σ = 3043725312. Its totient is φ = 1520434440.

The previous prime is 2281722763. The next prime is 2281722823. The reversal of 2281722819 is 9182271822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2281722819 - 2⁷ = 2281722691 is a prime.

It is a super-2 number, since 2×2281722819² = 10412518045490613522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2281722869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171027 + ... + 183884.

It is an arithmetic number, because the mean of its divisors is an integer number (380465664).

Almost surely, 2^2281722819 is an apocalyptic number.

2281722819 is a deficient number, since it is larger than the sum of its proper divisors (762002493).

2281722819 is a wasteful number, since it uses less digits than its factorization.

2281722819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357057.

The product of its digits is 64512, while the sum is 42.

The square root of 2281722819 is about 47767.3823754243. The cubic root of 2281722819 is about 1316.5002984652.

The spelling of 2281722819 in words is "two billion, two hundred eighty-one million, seven hundred twenty-two thousand, eight hundred nineteen".