38281226377 has 2 divisors, whose sum is σ = 38281226378. Its totient is φ = 38281226376.

The previous prime is 38281226351. The next prime is 38281226449. The reversal of 38281226377 is 77362218283.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36350854281 + 1930372096 = 190659^2 + 43936^2 .

It is a cyclic number.

It is not a de Polignac number, because 38281226377 - 2¹¹ = 38281224329 is a prime.

It is a super-2 number, since 2×38281226377² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38281226377.

It is not a weakly prime, because it can be changed into another prime (38281226777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19140613188 + 19140613189.

It is an arithmetic number, because the mean of its divisors is an integer number (19140613189).

Almost surely, 2^38281226377 is an apocalyptic number.

It is an amenable number.

38281226377 is a deficient number, since it is larger than the sum of its proper divisors (1).

38281226377 is an equidigital number, since it uses as much as digits as its factorization.

38281226377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 49.

The spelling of 38281226377 in words is "thirty-eight billion, two hundred eighty-one million, two hundred twenty-six thousand, three hundred seventy-seven".