38221218045 has 96 divisors (see below), whose sum is σ = 72087350400. Its totient is φ = 18671731200.

The previous prime is 38221217959. The next prime is 38221218053. The reversal of 38221218045 is 54081212283.

It is a happy number.

38221218045 is a `hidden beast` number, since 382 + 21 + 218 + 0 + 45 = 666.

It is not a de Polignac number, because 38221218045 - 2⁷ = 38221217917 is a prime.

It is a congruent 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 95 ways as a sum of consecutive naturals, for example, 3070935 + ... + 3083355.

It is an arithmetic number, because the mean of its divisors is an integer number (750909900).

Almost surely, 2^38221218045 is an apocalyptic number.

It is an amenable number.

38221218045 is a deficient number, since it is larger than the sum of its proper divisors (33866132355).

38221218045 is a wasteful number, since it uses less digits than its factorization.

38221218045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12571 (or 12568 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 38221218045 in words is "thirty-eight billion, two hundred twenty-one million, two hundred eighteen thousand, forty-five".