1949166827 has 2 divisors, whose sum is σ = 1949166828. Its totient is φ = 1949166826.

The previous prime is 1949166797. The next prime is 1949166833. The reversal of 1949166827 is 7286619491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1949166827 - 2²⁶ = 1882057963 is a prime.

It is a super-3 number, since 3×1949166827³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1949166847) 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, 974583413 + 974583414.

It is an arithmetic number, because the mean of its divisors is an integer number (974583414).

Almost surely, 2^1949166827 is an apocalyptic number.

1949166827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1949166827 is an equidigital number, since it uses as much as digits as its factorization.

1949166827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 53.

The square root of 1949166827 is about 44149.3694971967. The cubic root of 1949166827 is about 1249.1550186940.

The spelling of 1949166827 in words is "one billion, nine hundred forty-nine million, one hundred sixty-six thousand, eight hundred twenty-seven".