39481936189 has 2 divisors, whose sum is σ = 39481936190. Its totient is φ = 39481936188.

The previous prime is 39481936177. The next prime is 39481936201. The reversal of 39481936189 is 98163918493.

It is a balanced prime because it is at equal distance from previous prime (39481936177) and next prime (39481936201).

It can be written as a sum of positive squares in only one way, i.e., 38931236100 + 550700089 = 197310^2 + 23467^2 .

It is a cyclic number.

It is not a de Polignac number, because 39481936189 - 2⁵ = 39481936157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39481936129) 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, 19740968094 + 19740968095.

It is an arithmetic number, because the mean of its divisors is an integer number (19740968095).

Almost surely, 2^39481936189 is an apocalyptic number.

It is an amenable number.

39481936189 is a deficient number, since it is larger than the sum of its proper divisors (1).

39481936189 is an equidigital number, since it uses as much as digits as its factorization.

39481936189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10077696, while the sum is 61.

The spelling of 39481936189 in words is "thirty-nine billion, four hundred eighty-one million, nine hundred thirty-six thousand, one hundred eighty-nine".