4038497261 has 2 divisors, whose sum is σ = 4038497262. Its totient is φ = 4038497260.

The previous prime is 4038497227. The next prime is 4038497311. The reversal of 4038497261 is 1627948304.

4038497261 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., 3642726025 + 395771236 = 60355^2 + 19894^2 .

It is a cyclic number.

It is not a de Polignac number, because 4038497261 - 2¹⁴ = 4038480877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4038497161) 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, 2019248630 + 2019248631.

It is an arithmetic number, because the mean of its divisors is an integer number (2019248631).

Almost surely, 2^4038497261 is an apocalyptic number.

It is an amenable number.

4038497261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4038497261 is an equidigital number, since it uses as much as digits as its factorization.

4038497261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 4038497261 is about 63549.1719930323. The cubic root of 4038497261 is about 1592.4773507159.

The spelling of 4038497261 in words is "four billion, thirty-eight million, four hundred ninety-seven thousand, two hundred sixty-one".