38181077067437 has 4 divisors (see below), whose sum is σ = 39841123896480. Its totient is φ = 36521030238396.

The previous prime is 38181077067359. The next prime is 38181077067473. The reversal of 38181077067437 is 73476077018183.

38181077067437 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 not a de Polignac number, because 38181077067437 - 2¹² = 38181077063341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38181077067437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38181077067737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830023414487 + ... + 830023414532.

It is an arithmetic number, because the mean of its divisors is an integer number (9960280974120).

Almost surely, 2^{38181077067437} is an apocalyptic number.

It is an amenable number.

38181077067437 is a deficient number, since it is larger than the sum of its proper divisors (1660046829043).

38181077067437 is a wasteful number, since it uses less digits than its factorization.

38181077067437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660046829042.

The product of its (nonzero) digits is 33191424, while the sum is 62.

The spelling of 38181077067437 in words is "thirty-eight trillion, one hundred eighty-one billion, seventy-seven million, sixty-seven thousand, four hundred thirty-seven".