38787378163207 has 2 divisors, whose sum is σ = 38787378163208. Its totient is φ = 38787378163206.

The previous prime is 38787378163189. The next prime is 38787378163253. The reversal of 38787378163207 is 70236187378783.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38787378163207 - 2¹⁵ = 38787378130439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38787378163277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19393689081603 + 19393689081604.

It is an arithmetic number, because the mean of its divisors is an integer number (19393689081604).

Almost surely, 2^{38787378163207} is an apocalyptic number.

38787378163207 is a deficient number, since it is larger than the sum of its proper divisors (1).

38787378163207 is an equidigital number, since it uses as much as digits as its factorization.

38787378163207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 398297088, while the sum is 70.

The spelling of 38787378163207 in words is "thirty-eight trillion, seven hundred eighty-seven billion, three hundred seventy-eight million, one hundred sixty-three thousand, two hundred seven".