1821922363 has 2 divisors, whose sum is σ = 1821922364. Its totient is φ = 1821922362.

The previous prime is 1821922343. The next prime is 1821922373. The reversal of 1821922363 is 3632291281.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1821922363 is a prime.

It is not a weakly prime, because it can be changed into another prime (1821922343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910961181 + 910961182.

It is an arithmetic number, because the mean of its divisors is an integer number (910961182).

Almost surely, 2^1821922363 is an apocalyptic number.

1821922363 is a deficient number, since it is larger than the sum of its proper divisors (1).

1821922363 is an equidigital number, since it uses as much as digits as its factorization.

1821922363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 1821922363 is about 42683.9825110076. The cubic root of 1821922363 is about 1221.3588646092.

The spelling of 1821922363 in words is "one billion, eight hundred twenty-one million, nine hundred twenty-two thousand, three hundred sixty-three".