38501312189 has 2 divisors, whose sum is σ = 38501312190. Its totient is φ = 38501312188.

The previous prime is 38501312183. The next prime is 38501312219. The reversal of 38501312189 is 98121310583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38498364100 + 2948089 = 196210^2 + 1717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38501312189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38501312183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19250656094 + 19250656095.

It is an arithmetic number, because the mean of its divisors is an integer number (19250656095).

Almost surely, 2^38501312189 is an apocalyptic number.

It is an amenable number.

38501312189 is a deficient number, since it is larger than the sum of its proper divisors (1).

38501312189 is an equidigital number, since it uses as much as digits as its factorization.

38501312189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 38501312189 in words is "thirty-eight billion, five hundred one million, three hundred twelve thousand, one hundred eighty-nine".