38138480489 has 2 divisors, whose sum is σ = 38138480490. Its totient is φ = 38138480488.

The previous prime is 38138480477. The next prime is 38138480591. The reversal of 38138480489 is 98408483183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37671704464 + 466776025 = 194092^2 + 21605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38138480489 is a prime.

It is not a weakly prime, because it can be changed into another prime (38138480449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19069240244 + 19069240245.

It is an arithmetic number, because the mean of its divisors is an integer number (19069240245).

Almost surely, 2^38138480489 is an apocalyptic number.

It is an amenable number.

38138480489 is a deficient number, since it is larger than the sum of its proper divisors (1).

38138480489 is an equidigital number, since it uses as much as digits as its factorization.

38138480489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5308416, while the sum is 56.

The spelling of 38138480489 in words is "thirty-eight billion, one hundred thirty-eight million, four hundred eighty thousand, four hundred eighty-nine".