38787378163189 has 2 divisors, whose sum is σ = 38787378163190. Its totient is φ = 38787378163188.

The previous prime is 38787378163133. The next prime is 38787378163207. The reversal of 38787378163189 is 98136187378783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38726537994225 + 60840168964 = 6223065^2 + 246658^2 .

It is a cyclic number.

It is not a de Polignac number, because 38787378163189 - 2¹¹ = 38787378161141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38787378160189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19393689081594 + 19393689081595.

It is an arithmetic number, because the mean of its divisors is an integer number (19393689081595).

Almost surely, 2^{38787378163189} is an apocalyptic number.

It is an amenable number.

38787378163189 is a deficient number, since it is larger than the sum of its proper divisors (1).

38787378163189 is an equidigital number, since it uses as much as digits as its factorization.

38787378163189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048385024, while the sum is 79.

The spelling of 38787378163189 in words is "thirty-eight trillion, seven hundred eighty-seven billion, three hundred seventy-eight million, one hundred sixty-three thousand, one hundred eighty-nine".