4448696981 has 2 divisors, whose sum is σ = 4448696982. Its totient is φ = 4448696980.

The previous prime is 4448696977. The next prime is 4448697013. The reversal of 4448696981 is 1896968444.

4448696981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2278534756 + 2170162225 = 47734^2 + 46585^2 .

It is a cyclic number.

It is not a de Polignac number, because 4448696981 - 2² = 4448696977 is a prime.

It is a super-2 number, since 2×4448696981² = 39581809657517028722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4448696981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4448692981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2224348490 + 2224348491.

It is an arithmetic number, because the mean of its divisors is an integer number (2224348491).

Almost surely, 2^4448696981 is an apocalyptic number.

It is an amenable number.

4448696981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4448696981 is an equidigital number, since it uses as much as digits as its factorization.

4448696981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11943936, while the sum is 59.

The square root of 4448696981 is about 66698.5530652652. The cubic root of 4448696981 is about 1644.6655985790.

The spelling of 4448696981 in words is "four billion, four hundred forty-eight million, six hundred ninety-six thousand, nine hundred eighty-one".