2938261609 has 2 divisors, whose sum is σ = 2938261610. Its totient is φ = 2938261608.

The previous prime is 2938261591. The next prime is 2938261619. The reversal of 2938261609 is 9061628392.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1824571225 + 1113690384 = 42715^2 + 33372^2 .

It is a cyclic number.

It is not a de Polignac number, because 2938261609 - 2⁹ = 2938261097 is a prime.

It is not a weakly prime, because it can be changed into another prime (2938261619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1469130804 + 1469130805.

It is an arithmetic number, because the mean of its divisors is an integer number (1469130805).

Almost surely, 2^2938261609 is an apocalyptic number.

It is an amenable number.

2938261609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2938261609 is an equidigital number, since it uses as much as digits as its factorization.

2938261609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 2938261609 is about 54205.7340970492. The cubic root of 2938261609 is about 1432.2873411991.

The spelling of 2938261609 in words is "two billion, nine hundred thirty-eight million, two hundred sixty-one thousand, six hundred nine".