38081473889 has 2 divisors, whose sum is σ = 38081473890. Its totient is φ = 38081473888.

The previous prime is 38081473847. The next prime is 38081473897. The reversal of 38081473889 is 98837418083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38031630289 + 49843600 = 195017^2 + 7060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38081473889 is a prime.

It is not a weakly prime, because it can be changed into another prime (38081473489) 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, 19040736944 + 19040736945.

It is an arithmetic number, because the mean of its divisors is an integer number (19040736945).

Almost surely, 2^38081473889 is an apocalyptic number.

It is an amenable number.

38081473889 is a deficient number, since it is larger than the sum of its proper divisors (1).

38081473889 is an equidigital number, since it uses as much as digits as its factorization.

38081473889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9289728, while the sum is 59.

The spelling of 38081473889 in words is "thirty-eight billion, eighty-one million, four hundred seventy-three thousand, eight hundred eighty-nine".