2801125849 has 2 divisors, whose sum is σ = 2801125850. Its totient is φ = 2801125848.

The previous prime is 2801125813. The next prime is 2801125879. The reversal of 2801125849 is 9485211082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2645250624 + 155875225 = 51432^2 + 12485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2801125849 is a prime.

It is not a weakly prime, because it can be changed into another prime (2801125879) 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, 1400562924 + 1400562925.

It is an arithmetic number, because the mean of its divisors is an integer number (1400562925).

Almost surely, 2^2801125849 is an apocalyptic number.

It is an amenable number.

2801125849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2801125849 is an equidigital number, since it uses as much as digits as its factorization.

2801125849 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 40.

The square root of 2801125849 is about 52925.6634252231. The cubic root of 2801125849 is about 1409.6486304856.

The spelling of 2801125849 in words is "two billion, eight hundred one million, one hundred twenty-five thousand, eight hundred forty-nine".