38871405407767 has 4 divisors (see below), whose sum is σ = 40211798697720. Its totient is φ = 37531012117816.

The previous prime is 38871405407759. The next prime is 38871405407827. The reversal of 38871405407767 is 76770450417883.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38871405407767 - 2³ = 38871405407759 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38871405407717) 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, 670196644933 + ... + 670196644990.

It is an arithmetic number, because the mean of its divisors is an integer number (10052949674430).

Almost surely, 2^{38871405407767} is an apocalyptic number.

38871405407767 is a deficient number, since it is larger than the sum of its proper divisors (1340393289953).

38871405407767 is a wasteful number, since it uses less digits than its factorization.

38871405407767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340393289952.

The product of its (nonzero) digits is 221276160, while the sum is 67.

The spelling of 38871405407767 in words is "thirty-eight trillion, eight hundred seventy-one billion, four hundred five million, four hundred seven thousand, seven hundred sixty-seven".