1922865853 has 2 divisors, whose sum is σ = 1922865854. Its totient is φ = 1922865852.

The previous prime is 1922865827. The next prime is 1922865877. The reversal of 1922865853 is 3585682291.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1345569124 + 577296729 = 36682^2 + 24027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1922865853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1922865797 and 1922865806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1922865883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 961432926 + 961432927.

It is an arithmetic number, because the mean of its divisors is an integer number (961432927).

Almost surely, 2^1922865853 is an apocalyptic number.

It is an amenable number.

1922865853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1922865853 is an equidigital number, since it uses as much as digits as its factorization.

1922865853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 49.

The square root of 1922865853 is about 43850.4943301669. The cubic root of 1922865853 is about 1243.5110888194.

The spelling of 1922865853 in words is "one billion, nine hundred twenty-two million, eight hundred sixty-five thousand, eight hundred fifty-three".