1834554649 has 2 divisors, whose sum is σ = 1834554650. Its totient is φ = 1834554648.

The previous prime is 1834554637. The next prime is 1834554707. The reversal of 1834554649 is 9464554381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1264300249 + 570254400 = 35557^2 + 23880^2 .

It is a cyclic number.

It is not a de Polignac number, because 1834554649 - 2⁷ = 1834554521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1834554629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 917277324 + 917277325.

It is an arithmetic number, because the mean of its divisors is an integer number (917277325).

Almost surely, 2^1834554649 is an apocalyptic number.

It is an amenable number.

1834554649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1834554649 is an equidigital number, since it uses as much as digits as its factorization.

1834554649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2073600, while the sum is 49.

The square root of 1834554649 is about 42831.7014488101. The cubic root of 1834554649 is about 1224.1751268157.

The spelling of 1834554649 in words is "one billion, eight hundred thirty-four million, five hundred fifty-four thousand, six hundred forty-nine".