38778581383 has 2 divisors, whose sum is σ = 38778581384. Its totient is φ = 38778581382.

The previous prime is 38778581329. The next prime is 38778581441. The reversal of 38778581383 is 38318587783.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38778581383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38778581983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19389290691 + 19389290692.

It is an arithmetic number, because the mean of its divisors is an integer number (19389290692).

Almost surely, 2^38778581383 is an apocalyptic number.

38778581383 is a deficient number, since it is larger than the sum of its proper divisors (1).

38778581383 is an equidigital number, since it uses as much as digits as its factorization.

38778581383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27095040, while the sum is 61.

The spelling of 38778581383 in words is "thirty-eight billion, seven hundred seventy-eight million, five hundred eighty-one thousand, three hundred eighty-three".