38181345122 has 18 divisors (see below), whose sum is σ = 57616035267. Its totient is φ = 18976683136.

The previous prime is 38181345119. The next prime is 38181345131. The reversal of 38181345122 is 22154318183.

It can be written as a sum of positive squares in 5 ways, for example, as 11586584881 + 26594760241 = 107641^2 + 163079^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=138169.

It is a Duffinian number.

It is an unprimeable number.

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 in 8 ways as a sum of consecutive naturals, for example, 64386458 + ... + 64387050.

Almost surely, 2^38181345122 is an apocalyptic number.

38181345122 is a deficient number, since it is larger than the sum of its proper divisors (19434690145).

38181345122 is an frugal number, since it uses more digits than its factorization.

38181345122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654 (or 828 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The spelling of 38181345122 in words is "thirty-eight billion, one hundred eighty-one million, three hundred forty-five thousand, one hundred twenty-two".