1822766851 has 2 divisors, whose sum is σ = 1822766852. Its totient is φ = 1822766850.

The previous prime is 1822766849. The next prime is 1822766879. The reversal of 1822766851 is 1586672281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1822766851 - 2¹ = 1822766849 is a prime.

Together with 1822766849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1822766051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911383425 + 911383426.

It is an arithmetic number, because the mean of its divisors is an integer number (911383426).

Almost surely, 2^1822766851 is an apocalyptic number.

1822766851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1822766851 is an equidigital number, since it uses as much as digits as its factorization.

1822766851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 46.

The square root of 1822766851 is about 42693.8736940091. The cubic root of 1822766851 is about 1221.5475414352.

It can be divided in two parts, 18227 and 66851, that added together give a triangular number (85078 = T₄₁₂).

The spelling of 1822766851 in words is "one billion, eight hundred twenty-two million, seven hundred sixty-six thousand, eight hundred fifty-one".