38220787169 has 2 divisors, whose sum is σ = 38220787170. Its totient is φ = 38220787168.

The previous prime is 38220787153. The next prime is 38220787261. The reversal of 38220787169 is 96178702283.

38220787169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30032890000 + 8187897169 = 173300^2 + 90487^2 .

It is an emirp because it is prime and its reverse (96178702283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38220787169 - 2⁴ = 38220787153 is a prime.

It is a super-2 number, since 2×38220787169² (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 38220787169.

It is not a weakly prime, because it can be changed into another prime (38220787069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19110393584 + 19110393585.

It is an arithmetic number, because the mean of its divisors is an integer number (19110393585).

Almost surely, 2^38220787169 is an apocalyptic number.

It is an amenable number.

38220787169 is a deficient number, since it is larger than the sum of its proper divisors (1).

38220787169 is an equidigital number, since it uses as much as digits as its factorization.

38220787169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 38220787169 in words is "thirty-eight billion, two hundred twenty million, seven hundred eighty-seven thousand, one hundred sixty-nine".