38158867687 has 2 divisors, whose sum is σ = 38158867688. Its totient is φ = 38158867686.

The previous prime is 38158867679. The next prime is 38158867693. The reversal of 38158867687 is 78676885183.

38158867687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38158867687 - 2³ = 38158867679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38158867657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19079433843 + 19079433844.

It is an arithmetic number, because the mean of its divisors is an integer number (19079433844).

Almost surely, 2^38158867687 is an apocalyptic number.

38158867687 is a deficient number, since it is larger than the sum of its proper divisors (1).

38158867687 is an equidigital number, since it uses as much as digits as its factorization.

38158867687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108380160, while the sum is 67.

The spelling of 38158867687 in words is "thirty-eight billion, one hundred fifty-eight million, eight hundred sixty-seven thousand, six hundred eighty-seven".