38181064045 has 4 divisors (see below), whose sum is σ = 45817276860. Its totient is φ = 30544851232.

The previous prime is 38181064007. The next prime is 38181064073. The reversal of 38181064045 is 54046018183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54046018183 = 277 ⋅195111979.

It can be written as a sum of positive squares in 2 ways, for example, as 11693827044 + 26487237001 = 108138^2 + 162749^2 .

It is a cyclic number.

It is not a de Polignac number, because 38181064045 - 2¹⁵ = 38181031277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38181063989 and 38181064007.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3818106400 + ... + 3818106409.

It is an arithmetic number, because the mean of its divisors is an integer number (11454319215).

Almost surely, 2^38181064045 is an apocalyptic number.

It is an amenable number.

38181064045 is a deficient number, since it is larger than the sum of its proper divisors (7636212815).

38181064045 is an equidigital number, since it uses as much as digits as its factorization.

38181064045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7636212814.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 38181064045 in words is "thirty-eight billion, one hundred eighty-one million, sixty-four thousand, forty-five".