38489524391993 has 2 divisors, whose sum is σ = 38489524391994. Its totient is φ = 38489524391992.

The previous prime is 38489524391959. The next prime is 38489524392029. The reversal of 38489524391993 is 39919342598483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36230130607609 + 2259393784384 = 6019147^2 + 1503128^2 .

It is a cyclic number.

It is not a de Polignac number, because 38489524391993 - 2²⁴ = 38489507614777 is a prime.

It is not a weakly prime, because it can be changed into another prime (38489524391953) 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, 19244762195996 + 19244762195997.

It is an arithmetic number, because the mean of its divisors is an integer number (19244762195997).

Almost surely, 2^{38489524391993} is an apocalyptic number.

It is an amenable number.

38489524391993 is a deficient number, since it is larger than the sum of its proper divisors (1).

38489524391993 is an equidigital number, since it uses as much as digits as its factorization.

38489524391993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1813985280, while the sum is 77.

The spelling of 38489524391993 in words is "thirty-eight trillion, four hundred eighty-nine billion, five hundred twenty-four million, three hundred ninety-one thousand, nine hundred ninety-three".