2051441849 has 2 divisors, whose sum is σ = 2051441850. Its totient is φ = 2051441848.

The previous prime is 2051441827. The next prime is 2051441857. The reversal of 2051441849 is 9481441502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1336414249 + 715027600 = 36557^2 + 26740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051441849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2051441809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025720924 + 1025720925.

It is an arithmetic number, because the mean of its divisors is an integer number (1025720925).

Almost surely, 2^2051441849 is an apocalyptic number.

It is an amenable number.

2051441849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051441849 is an equidigital number, since it uses as much as digits as its factorization.

2051441849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 2051441849 is about 45292.8454504682. The cubic root of 2051441849 is about 1270.6318489821.

The spelling of 2051441849 in words is "two billion, fifty-one million, four hundred forty-one thousand, eight hundred forty-nine".