38770478837 has 2 divisors, whose sum is σ = 38770478838. Its totient is φ = 38770478836.

The previous prime is 38770478801. The next prime is 38770478867. The reversal of 38770478837 is 73887407783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37894851556 + 875627281 = 194666^2 + 29591^2 .

It is a cyclic number.

It is not a de Polignac number, because 38770478837 - 2²² = 38766284533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38770478837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38770478867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19385239418 + 19385239419.

It is an arithmetic number, because the mean of its divisors is an integer number (19385239419).

Almost surely, 2^38770478837 is an apocalyptic number.

It is an amenable number.

38770478837 is a deficient number, since it is larger than the sum of its proper divisors (1).

38770478837 is an equidigital number, since it uses as much as digits as its factorization.

38770478837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44255232, while the sum is 62.

The spelling of 38770478837 in words is "thirty-eight billion, seven hundred seventy million, four hundred seventy-eight thousand, eight hundred thirty-seven".