2446890881 has 2 divisors, whose sum is σ = 2446890882. Its totient is φ = 2446890880.

The previous prime is 2446890827. The next prime is 2446890907. The reversal of 2446890881 is 1880986442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2023560256 + 423330625 = 44984^2 + 20575^2 .

It is a cyclic number.

It is not a de Polignac number, because 2446890881 - 2¹⁰ = 2446889857 is a prime.

It is a super-2 number, since 2×2446890881² = 11974549967041912322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2446890781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1223445440 + 1223445441.

It is an arithmetic number, because the mean of its divisors is an integer number (1223445441).

Almost surely, 2^2446890881 is an apocalyptic number.

It is an amenable number.

2446890881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2446890881 is an equidigital number, since it uses as much as digits as its factorization.

2446890881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 884736, while the sum is 50.

The square root of 2446890881 is about 49466.0578679967. The cubic root of 2446890881 is about 1347.5292496430.

The spelling of 2446890881 in words is "two billion, four hundred forty-six million, eight hundred ninety thousand, eight hundred eighty-one".