1822337681 has 2 divisors, whose sum is σ = 1822337682. Its totient is φ = 1822337680.

The previous prime is 1822337659. The next prime is 1822337689. The reversal of 1822337681 is 1867332281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1798523281 + 23814400 = 42409^2 + 4880^2 .

It is an emirp because it is prime and its reverse (1867332281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1822337681 - 2¹⁰ = 1822336657 is a prime.

It is a super-2 number, since 2×1822337681² = 6641829247184915522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1822337689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911168840 + 911168841.

It is an arithmetic number, because the mean of its divisors is an integer number (911168841).

Almost surely, 2^1822337681 is an apocalyptic number.

It is an amenable number.

1822337681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1822337681 is an equidigital number, since it uses as much as digits as its factorization.

1822337681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 1822337681 is about 42688.8472671727. The cubic root of 1822337681 is about 1221.4516628888.

The spelling of 1822337681 in words is "one billion, eight hundred twenty-two million, three hundred thirty-seven thousand, six hundred eighty-one".