1922772823 has 2 divisors, whose sum is σ = 1922772824. Its totient is φ = 1922772822.

The previous prime is 1922772779. The next prime is 1922772827. The reversal of 1922772823 is 3282772291.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1922772823 - 2⁹ = 1922772311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1922772823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1922772827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 961386411 + 961386412.

It is an arithmetic number, because the mean of its divisors is an integer number (961386412).

Almost surely, 2^1922772823 is an apocalyptic number.

1922772823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1922772823 is an equidigital number, since it uses as much as digits as its factorization.

1922772823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The square root of 1922772823 is about 43849.4335539240. The cubic root of 1922772823 is about 1243.4910344299.

The spelling of 1922772823 in words is "one billion, nine hundred twenty-two million, seven hundred seventy-two thousand, eight hundred twenty-three".