38945225069 has 2 divisors, whose sum is σ = 38945225070. Its totient is φ = 38945225068.

The previous prime is 38945225041. The next prime is 38945225119. The reversal of 38945225069 is 96052254983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38754647044 + 190578025 = 196862^2 + 13805^2 .

It is a cyclic number.

It is not a de Polignac number, because 38945225069 - 2¹² = 38945220973 is a prime.

It is a super-2 number, since 2×38945225069² (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 38945225069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38905225069) 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, 19472612534 + 19472612535.

It is an arithmetic number, because the mean of its divisors is an integer number (19472612535).

Almost surely, 2^38945225069 is an apocalyptic number.

It is an amenable number.

38945225069 is a deficient number, since it is larger than the sum of its proper divisors (1).

38945225069 is an equidigital number, since it uses as much as digits as its factorization.

38945225069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 53.

The spelling of 38945225069 in words is "thirty-eight billion, nine hundred forty-five million, two hundred twenty-five thousand, sixty-nine".