38018886641 has 4 divisors (see below), whose sum is σ = 38019471984. Its totient is φ = 38018301300.

The previous prime is 38018886629. The next prime is 38018886707. The reversal of 38018886641 is 14668881083.

38018886641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38018886641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38018886601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181055 + ... + 329876.

It is an arithmetic number, because the mean of its divisors is an integer number (9504867996).

Almost surely, 2^38018886641 is an apocalyptic number.

It is an amenable number.

38018886641 is a deficient number, since it is larger than the sum of its proper divisors (585343).

38018886641 is an equidigital number, since it uses as much as digits as its factorization.

38018886641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585342.

The product of its (nonzero) digits is 1769472, while the sum is 53.

The spelling of 38018886641 in words is "thirty-eight billion, eighteen million, eight hundred eighty-six thousand, six hundred forty-one".