38156643582 has 16 divisors (see below), whose sum is σ = 80802304272. Its totient is φ = 11970711680.

The previous prime is 38156643571. The next prime is 38156643611. The reversal of 38156643582 is 28534665183.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51).

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 7 ways as a sum of consecutive naturals, for example, 187042269 + ... + 187042472.

It is an arithmetic number, because the mean of its divisors is an integer number (5050144017).

Almost surely, 2^38156643582 is an apocalyptic number.

38156643582 is an abundant number, since it is smaller than the sum of its proper divisors (42645660690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38156643582 is a wasteful number, since it uses less digits than its factorization.

38156643582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374084763.

The product of its digits is 4147200, while the sum is 51.

The spelling of 38156643582 in words is "thirty-eight billion, one hundred fifty-six million, six hundred forty-three thousand, five hundred eighty-two".