8381077101889 has 2 divisors, whose sum is σ = 8381077101890. Its totient is φ = 8381077101888.

The previous prime is 8381077101841. The next prime is 8381077102019. The reversal of 8381077101889 is 9881017701838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8345356101889 + 35721000000 = 2888833^2 + 189000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8381077101889 is a prime.

It is not a weakly prime, because it can be changed into another prime (8381077101389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4190538550944 + 4190538550945.

It is an arithmetic number, because the mean of its divisors is an integer number (4190538550945).

Almost surely, 2^{8381077101889} is an apocalyptic number.

It is an amenable number.

8381077101889 is a deficient number, since it is larger than the sum of its proper divisors (1).

8381077101889 is an equidigital number, since it uses as much as digits as its factorization.

8381077101889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 61.

The spelling of 8381077101889 in words is "eight trillion, three hundred eighty-one billion, seventy-seven million, one hundred one thousand, eight hundred eighty-nine".